KR200374085Y1 - A electric boiler system - Google Patents

Abstract

Disclosed is an electric boiler system in which the hot water supply and heating can be used at the same time, and the structure thereof is improved so that hot water can be supplied at a constant temperature when hot water is used through a hot water valve. The system includes a boiler body 20 in which the heat medium 100 is stored, an electric heater 30 accommodated in the boiler body to heat the heat medium, and a heating pipe through which both ends are connected to the boiler body to circulate the heated heat medium ( 23, a first line 21, a first circulation pump 31 installed on the first line to circulate the heat medium, and a heat exchange pipe through which both ends are connected to the boiler body to circulate the heated heat medium. A second line 22 including 24, a second circulation pump 32 installed on the second line to circulate the heat medium, and inflow of cold water to discharge hot water according to opening and closing of the hot water valve 61; And an auxiliary heat exchanger (50) having a main heat exchanger (40) for accommodating heat exchange pipes (24) and an auxiliary electric heater (51) for heating hot water on the hot water line (65) via the main heat exchanger. Equipped. This system allows hot water and heating to be used at the same time, and employs a second circulation pump 32 and an auxiliary electric heater 51 whose supply power is controlled according to the amount of hot water used. Make sure to use hot water at a constant temperature.

Description

Electric boiler system {A electric boiler system}

The present invention relates to an electric boiler system, in particular, it is possible to use both the supply and heating of hot water at the same time, and to improve the structure of the electric boiler system so that hot water can be supplied at a constant temperature when using hot water through the hot water valve. It is about.

Generally, boilers used for home or industrial use vary according to the type of heat source such as oil boiler, gas boiler and electric boiler.

The oil boiler and the gas boiler are easy to heat the heat medium due to the large thermal power, while the electric boiler takes a lot of time to heat the heat exchange medium.

Electric boilers are widely used because there is no danger of explosion or toxic gas, and noise and odor are not generated. In particular, in recent years, a heat storage method that circulates hot water when needed by heating a heat medium using low-cost electric power at midnight. Is preferred.

On the other hand, Figure 1 shows a form of a general electric boiler. This is to enable the supply and heating of hot water at the same time or selectively, the heat medium is circulated by the circulation pipe (15) between the reservoir (8) and the heating pipe (6), the circulation pipe (15) In the upper part, an electric heater 2, a circulation pump 3, a temperature sensor 4 and a flow sensor 5 are provided. These are to be controlled by the controller 10, the cold water supplied through the water supply pipe (1) is heated to the heat transfer heater (2) and the circulation pipe (3) to circulate the heating pipe (6) and the reservoir (8). Through the hot water discharge pipe 7, hot water can be used as living water.

In addition, the heating medium heated by the two-way valves 11 and 12 can allow only the heating pipe 6 to be circulated, and the heated heating medium can be adapted to circulate only the water tank 8.

However, such an electric boiler has the following problems.

First, since water is used so that the heat medium of the heating pipe 6 can be used as domestic hot water, the electric boiler having the above structure has a limited selection of the heat medium.

Second, in case of using hot water at the same time with heating, cold water is supplied through the water supply pipe (1). This is inconvenient.

In the case of other conventional boilers, when a large amount of hot water such as a shower is to be used, the hot water is operated to supply rapid hot water, but this also has the inconvenience of operating the hot water switch separately.

The present invention has been made to solve the above problems, has the following objectives.

First, it is to provide an electric boiler system that enables heating while using hot water and enables the use of other heat medium even if it is not water.

Second, to provide an electric boiler system that enables the use of hot water even if the circulation of the heating medium for heating is stopped.

Third, it is to provide an electric boiler system to maintain a constant temperature of the hot water supplied when using the hot water.

Fourth, it is to provide an electric boiler system that hot water of a constant temperature is automatically heated according to the usage of hot water without operating a separate hot water switch.

1 is a schematic view showing a conventional electric boiler system,

2 is a schematic view showing an electric boiler system of the present invention;

3 and 4 is a schematic view showing an automatic opening and closing valve employed in the present invention system,

5 is a block diagram illustrating a control state of the second circulation pump and the auxiliary electric heater by the automatic opening and closing valve employed in the inventive electric boiler system.

* Explanation of symbols on the main parts of the drawings

20 Boiler body 21, 22 Line 1, 2

23.Heating piping 24.Heat exchange piping

30.Electric heater 40 ... Main heat exchanger

50 Auxiliary heat exchanger 51 Auxiliary electric heater

60 ... cold water line 61 ... hot water valve

65 ... hot water line 70 ... automatic opening

100..Heat Media

The electric boiler system of the present invention to achieve the above object is a boiler body in which a heat medium is stored, an electric heater accommodated in the boiler body to heat the heat medium, and a heating pipe in which both ends are connected to the boiler body to circulate the heated heat medium. A first line including a first line, a first circulation pump installed on the first line to circulate the heat medium, and a second line including heat exchange pipes at which both ends are connected to the boiler body to circulate the heated heat medium. And a second circulation pump installed on the second line to circulate the heat medium, and a main heat exchanger configured to receive cold water, discharge hot water according to opening and closing of the hot water valve, and accommodate the heat exchange pipe. do.

The present invention system further includes an auxiliary heat exchanger incorporating an auxiliary electric heater for heating hot water on the hot water line via the main heat exchanger.

In addition, the present invention system is installed on the cold water or hot water line and the automatic opening and closing valve for generating a detection signal by detecting the flow rate is increased or decreased according to the degree of opening and closing of the hot water valve, the supply of the auxiliary electric heater by the detection signal A control unit for controlling power is provided.

In addition, in the electric boiler system of the present invention, the automatic opening and closing valve is provided with a coil bar in which a coil perpendicular to the flow direction of the cold water or hot water is wound, and is provided to be liftable along the coil bar, and the magnet is elevated in accordance with the flow rate of cold water or hot water. It is provided to generate a current signal according to the lifting height,

The power supply of the second circulation pump is controlled through the control unit according to the detection signal.

According to the above features of the present invention, the electric boiler system of the present invention enables heating by heating the heating medium from the boiler body via the heating pipe, and also provides a main heat exchanger on the second column in which the heated heating medium is circulated. To get hot water from cold water.

In addition, the hot water through the main heat exchanger by using a secondary heat exchanger in which the supply power is controlled in accordance with the amount of hot water to use a constant temperature hot water.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Referring to Figure 2 showing the electric boiler system of the present invention, it is a boiler body 20, the heat medium 100 is stored, and the electric heater 30 accommodated in the boiler body 20 to heat the heat medium 100 ) And a first line 21 including heating pipes 23 through which both ends are connected to the boiler body 20 and the heated heating medium 10 is circulated, and on the first line 21. A second circulation pump 31 installed to circulate the heat medium 100 and a heat exchange pipe 24 through which both ends are connected to the boiler body 20 so that the heated heat medium 100 is circulated. Line 22, the second circulation pump 32 is installed on the second line 22 to circulate the heat medium 100, and the cold water is introduced to discharge the hot water in accordance with the opening and closing of the hot water valve 61 It is provided with a main heat exchanger (40) for receiving the heat exchange pipe (24).

In addition, an auxiliary heat exchanger 50 having an auxiliary electric heater 51 for heating hot water on the hot water line 65 via the main heat exchanger 40 is provided, and the main heat exchanger 40 is provided. Cold water line 60 for supplying cold water is provided with an automatic opening and closing valve 70 for generating an electric signal according to the flow rate when the flow rate discharged according to the opening and closing degree of the hot water valve 61 is changed.

As shown in FIG. 5, the second circulation pump 32 and the auxiliary electric heater 51 are supplied with power through a controller in accordance with an electric signal (flow rate detection signal) generated by the automatic opening / closing valve 70. .

As shown in Figure 3 and 4, the automatic opening and closing valve 70 is provided with a coil bar 71, a coil vertically wound in the flow direction of the cold water and the lifting and lowering along the coil bar 71 is provided. A magnet 72 which is elevated according to the flow rate of cold water is provided to generate a current signal according to the elevation height.

The automatic opening and closing valve 70 may be installed on the hot water line 65 via the main heat exchanger (40).

The automatic opening / closing valve 70 supplies the second circulation pump 32 and the auxiliary electric heater 51 to use hot water at a constant temperature according to the degree of opening and closing of the hot water valve 61 in a shower room or the like. Control power.

The automatic opening and closing valve 70 has no electricity generation signal at the position where the magnet 72 in the valve is lowered when there is no flow of cold water because the hot water valve 61 is closed, and the hot water valve 61 is completely opened to maximize the flow rate. In the case of using hot water, the magnet 72 rises along the coil bar 71 by the flow of cold water to generate a constant electric signal. The electrical signal is controlled to supply the maximum supply power to the auxiliary electric heater 51 and the second circulation pump 32 through the control unit.

Therefore, the second circulation pump 32 is driven to the maximum to induce rapid circulation of the heat medium 100 so that a large amount of flow can be heated through the main heat exchanger 40, and also the maximum of the auxiliary electric heater 51. By supplying and operating the supply power to enable a large amount of hot water to be warmed, even if a large amount of hot water is used through the hot water valve 61, it is possible to use hot water at a constant temperature according to the change of the flow rate.

The electric boiler system of the above configuration is operated as follows.

First, distilled water or tap water may be used as the heat medium 100, but oil was used in the present exemplary embodiment. The electric heater 30 is operated to heat the heat medium 100 accommodated in the boiler body 20, and the first circulation pump 31 is driven to circulate the heat medium 100 in the heating pipe 23 to heat each room. . At this time, the second circulation pump 32 may be stopped and the valve of the second line 22 may be blocked to allow the heat medium 100 to circulate only in the heating pipe 23.

In addition, when the hot water is to be used through the hot water valve 61 in the shower room or the like, the valve of the second line 22 is opened and the second circulation motor 32 is operated to heat the heat medium 100 in the second line 22. ) Is circulated.

In this case, when the hot water valve 61 is opened, hot water is discharged through the main heat exchanger 40 through the cold water line 60.

On the other hand, the flow rate supplied from the cold water line 60 is changed according to the opening and closing degree of the hot water valve 61, the degree of lifting of the magnet 72 of the automatic opening and closing valve 70 is changed according to the supplied flow rate. . Therefore, the current signal is generated by the relative movement with the coil bar 71 according to the rising height of the magnet 72.

In this way, when the flow rate changes according to the opening and closing degree of the hot water valve 61, the supply power supplied to the second circulation pump 32 and the auxiliary electric heater 51 through the control unit by the current signal from the automatic switching valve 70 Will be controlled.

Therefore, when a large amount of hot water is used, a large supply power is supplied to the second circulation pump 32 and the auxiliary electric heater 51 to warm the cold water in a short time so that a large amount of hot water is used. Use hot water.

The present invention as described above is not limited to the above embodiments without departing from the spirit and scope of the present application can be carried out by adding a number of modifications.

The present invention as described above has the following advantages.

First, the electric boiler system of the present invention enables heating by heating the heat medium heated from the boiler body 20 through the heating pipe 23, and also the main heat exchange on the second line 22 through which the heated heat medium is circulated. By providing a unit 40 so that hot water can be obtained from cold water, hot water and heating can be used simultaneously.

Second, by adopting the second circulation pump 32 and the auxiliary electric heater 51 in which the supply power is controlled according to the amount of hot water used, hot water at a constant temperature can be used despite the use of a large amount of hot water.

Third, the use of the auxiliary heat exchanger 50 enables the use of hot water even when the electric heater 30 and the first and second circulation pumps 31 and 32 are stopped.

Third, in contrast to the conventional hassle of having to operate a separate hot water supply switch when a large amount of hot water is used, the hot water is automatically opened and closed by an automatic switching valve 70 which generates a current signal according to the flow rate of the hot water. Eliminates conventional hassles by automatically heating them.

Claims (4)

Boiler body 20 and the heat medium 100 is stored, An electric heater 30 accommodated in the boiler body 20 to heat the heat medium 100; A first line 21 having both ends connected to the boiler body 20 and a heating pipe 23 through which the heated heating medium 100 is circulated; A first circulation pump 31 installed on the first line 21 to circulate the heat medium 100; A second line 22 including heat exchange pipes 24 through which both ends are connected to the boiler body 20 and the heated heating medium 100 is circulated; A second circulation pump 32 installed on the second line 22 to circulate the heat medium 100; An electric boiler system comprising a main heat exchanger (40) for receiving cold water and discharging hot water according to opening and closing of the hot water valve (61) and accommodating the heat exchange pipe (24). The auxiliary heat exchanger (50) according to claim 1, further comprising an auxiliary heat exchanger (50) in which an auxiliary electric heater (51) for warming hot water is heated on the hot water line (65) via the main heat exchanger (40). Electric boiler system. According to claim 2, On the cold water or hot water line and the automatic opening and closing valve 70 for generating a detection signal by detecting the flow rate is increased or decreased according to the opening and closing degree of the hot water valve 61, by the detection signal Electric boiler system characterized in that it comprises a control unit for controlling the power supply of the auxiliary electric heater (51). According to claim 3, wherein the automatic opening and closing valve 70 is provided with a coil bar 71, the coil vertically wound in the flow direction of cold water or hot water, and is provided to be elevated along the coil bar 71, cold water or hot water It is provided with a magnet 72 which is elevated in accordance with the flow rate of generates a current signal according to the lifting height, The electric boiler system, characterized in that the supply power of the second circulation pump (32) is controlled through the control unit in accordance with the detection signal.