KR200234383Y1 - a outside heating device with heat-accumulation midnight electric boiler - Google Patents

Abstract

The present invention relates to a regenerative midnight electric boiler and a midnight electric water heater using a midnight electric power, and a separate heating device and a separate portion in the middle part of a heat storage tank of a conventional regenerative midnight electric boiler and a midnight electric water heater. By installing the circulation pump and solenoid valve,

This allows the heat or latent heat storage and circulation of hot water, and enables the use of heating and hot water quickly with a separate small-capacity heater even in the late-night power zone, as well as the reduction of facility investment cost by distributing the late-night power load. The performance is good and economical effect.

Description

Regenerative midnight electric boiler with external heating device {a outside heating device with heat-accumulation midnight electric boiler}

The present invention relates to a regenerative midnight electric boiler and a midnight electric water heater using a midnight electric power, and more specifically, by installing a separate heating device, a circulation pump, and a solenoid valve on an external side of the regenerative midnight electric boiler and a midnight electric water heater, By connecting these pipes, the regenerative midnight electric boiler and the midnight electric water heater can be operated and at the same time, the high temperature hot water required for heating and hot water can be obtained quickly, and it can be used even if only a small capacity heater is installed. And since only the heating device is installed in the electric water heater, it is possible to use a conventional boiler, but the present invention relates to a heat storage type midnight electric boiler and an external heating device of the midnight electric water heater.

Regenerative late-night electric boilers and midnight electric water heaters mainly use late-night electric power, and are electricity that is used only after midnight, which is a night time with low power consumption, from 10 pm to 8 pm, or from 11 pm to 9 pm the next day. It is a policy to maximize the efficiency of power generation facilities that produce electricity while distributing the unbalanced power consumption and reducing the import of crude oil for heating by supplying surplus electricity at a low cost.

Therefore, a typical heat storage type midnight electric boiler is provided with a relatively large hot water tank 100 as shown in FIG. 8, and a plurality of electric heaters 101 and 101 ′ capable of heating hot water are embedded therein. The electric heaters 101 and 101 'are intensively operated at midnight power time zones to heat water or latent heat in the heat storage tank to heat the stored heat using the discharge pipe 102 and the inflow pipe 103 during the daytime period. Of course, it is possible to use energy at a low price using hot water.

However, the above-described regenerative late night electric boiler and the late-night electric water heater use all of the heat storage material inside the hot water tank during the day, and when the heat storage tank is cooled, when the heating and hot water are used at night, the water of the heat storage tank or There is a problem that heating and hot water is not supplied until the latent heat material becomes a usable constant temperature.

That is, one or two heaters need to be heated at 10 or 11 nights when the late-night time starts, so the entire heat storage tank needs to be heated so that heating and hot water can be used quickly. Not only this, the investment cost of the distribution line of the Korea Electric Power Corporation, which supplies power, is excessive, and there is a problem in the efficient use of the power of the power plant.

Therefore, it is possible to enjoy better heating effect while distributing the power load by continuous heating with only a small amount of heater, and it is possible to accumulate heat that can be used during the daytime, but to reduce the heating time and hot water supply time. By installing a heater, there is a serious problem in the efficient operation of a power plant as well as the investment of excessive power production equipment and water heaters, and the excessive power distribution equipment of KEPCO.

The present invention was devised to eliminate the problems as described above, a separate circulation pump and a solenoid valve in the middle of a separate heating device and the pipe connected to the outer side of the heat storage tank of a conventional heat storage type midnight electric boiler and a midnight electric water heater. By mounting

This allows the heat or latent heat storage and circulation of hot water, and enables the use of heating and hot water quickly with a separate small-capacity heater even in the late-night power zone, as well as the reduction of facility investment cost by distributing the late-night power load. It is an object of the present invention to provide a regenerative midnight electric boiler and a midnight electric water heater equipped with a good and economical external heating device.

Figure 1 is an overall cross-sectional view of the present invention heat storage type midnight electric boiler

Figure 2 is a cross-sectional view of the heating device of the present invention heat storage type midnight electric boiler

Figure 3 is a perspective view showing a coupling structure inside the heat radiation fin of the present invention

4 is a flow chart of the heat storage material when the midnight electricity is applied to the heat storage midnight electric boiler of the present invention and the use of hot water or heating;

5 is a flow chart of the heat storage material when the midnight electricity is applied to the heat storage latex electric boiler of the present invention and not using hot water or heating.

6 is a flow chart of the heat storage material during the night-time short-circuit and hot water use or heating in the heat storage midnight electric boiler of the present invention;

7 is an automatic control circuit diagram of a heat storage midnight electric boiler of the present invention.

8 is an internal cross-sectional view of a conventional heat storage type midnight electric boiler.

Explanation of symbols on the main parts of the drawings

1: heat insulation layer 2: heat storage tank

3,3 ': Heater 4,4': Outlet pipe

5: inlet pipe 6: connector

7: solenoid valve 8: heater

9: flange 10: heating device

11: circulation pump 12: circulation pipe

13: circulation pump 14: through hole

15,15 ': Heat sink fin

20: indoor switch 21: power switch

22: check valve 23: check valve

Hereinafter, preferred embodiments of the present invention will be described.

1 is an overall cross-sectional view of a regenerative late night electric boiler according to the present invention, Figure 2 is a detailed cross-sectional view of the heating apparatus.

A plurality of heaters 3, 3 ′ are mounted on one side of the heat storage tank 2 in which the heat insulation layer 1 is formed, and on the other side, an inlet pipe 5 equipped with a discharge pipe 4 and a circulation pump 11 is provided. In a normal heat storage type late night electric boiler formed to penetrate into and out of the heat storage tank (2),

Separately form the external discharge pipe (4) (4 ') of the heat storage tank (2), and install a separate heating device (10) in which the heater (8) is built by the flange (9) in the middle of the heat storage tank (2) Lower connection pipe (6) of (10) is connected to the discharge pipe (4 ') and the inlet pipe (5), the solenoid valve (7) in the middle of the connection pipe (6) connected to the inlet pipe (5) Mounting,

A circulation pump 11 and a check valve 22 are mounted in the middle of the inflow pipe 5 and the heat storage tank 2,

Another circulation pipe 12 connecting the discharge pipe 4 and the inlet pipe 5 is formed so that another circulation pump 13 and a check valve 23 are mounted in the middle of the circulation pipe 12. It is composed.

In addition, a plurality of heat dissipation fins 15, 15 ′ formed with through holes 14 are spaced vertically on the periphery of the heater 8 in the heating device 10, but through the heat dissipation fins 15, 15 ′. (14) It may be configured to be formed in a zigzag shape abnormally.

In the drawings, reference numeral 20 denotes an indoor switch, and 21 denotes a power switch.

When described in more detail by the accompanying drawings, the operation of the present invention heat storage type midnight electric boiler by the above configuration as follows.

A typical heat storage type late night electric boiler and a water heater, as shown in FIG. 8, heat energy stored at night by using late night electric power again regenerates water or latent heat inside the heat storage tank 2 cooled by daytime use of the water or heat storage material. When the heaters 3 and 3 'are operated to heat during the late night hours, the heater 3 and 3's are heated around the heaters 3 and 3' first by the heat generated by the heaters 3 and 3 '. This is impossible.

Therefore, when the heater 8 of the separate external heating device 10 as shown in FIG. 2 is heated, only the water or latent heat material inside the heating device 10 is circulated to circulate to the interior of the heater 8. Heating and hot water can be used simultaneously with the application of power.

In addition, the heat radiating fins 15 and 15 ′, which are spaced up and down at the periphery of the heater 8, heat the high temperature heat generated by the heater 8 more quickly to heat water or the heat storage material inside the heating device 10. In this case, the mounting state of the through hole 14 formed in the heat dissipation fins 15 and 15 'is rotated by alternating the position of the through holes 14 of the heat dissipation fins 15 and 15' alternately from side to side. If the 14 is formed in an intangible zigzag shape, the hot water or latent heat flowing out through the through hole 14 to the discharge pipe 4 'will stay longer in the heater 10, so that the hotter It can supply hot water.

When the temporary heating and hot water is used, and the water or the latent heat of the entire interior of the heat storage tank 2 is increased by a certain temperature by the heaters 3 and 3 'inside the heat storage tank 2, the water in the heat storage tank 2 is then heated. Alternatively, when the latent heat is circulated by the circulation pump 11, heating and hot water can be used continuously.

Therefore, when the heat storage material of the entire heat storage tank does not require a constant temperature rise and needs to use rapid heating and hot water, its purpose can be achieved by a separate heating device 10, and the heater inside the heat storage tank 2 ( 3) (3 ') is continuously heated simultaneously, so that after a certain time, the water or latent heat in the heat storage tank 2 is sufficiently heated, allowing continuous heating and heating of hot water as well as high temperature during the night time. After the heat energy is stored, it is possible to use the heating and hot water by circulating high temperature water or latent heat material without heating during the day.

When the operation of the regenerative type midnight electric boiler and the midnight electric water heater by the present invention heating apparatus are individually explained according to the applied state of each switch or power source,

As shown in FIG. 4, the power switch 21 is operated to supply power to the heaters 3 and 3 ′ inside the heat storage tank 2 at a late night time, and to use an indoor switch (eg, an indoor heating or hot water). When 20) is turned ON, the circulation pump 11 on the inlet pipe 5 side and the solenoid valve 7 in the middle of the connecting pipe 6 are turned off, and the circulation pump 13 of the circulation pipe 12 is turned on. Will be.

Therefore, only the water inside the discharge pipe 4 'which is hypothesized indoors is circulated by the circulation pump 13 of the circulation pipe 12, and this circulation process is hot water heated to a high temperature by the heating device 10. Is discharged through the discharge pipe 4 ', and the hot water flowing along the discharge pipe 4' is continuously discharged by the pumping action of the circulation pump 13 of the circulation pipe 12 and the operation of the check valve 23. ') And the heating device 10 and the inlet pipe (5), circulating along the circulation tube (12).

In addition, as shown in FIG. 5, when the power switch 21 is turned on during the late night power time zone and when the indoor switch 20 is turned off, the circulation pump 13 of the circulation pipe 12 is turned off at the same time. The circulation pump 11 of the pipe 5 is turned on and the water or heat storage material in the heat storage tank 2 is discharged in the heat storage tank 2 by the operation of the check valve 23 and the solenoid 7 in the heat storage tank 2. Through the inlet pipe (5) through the heat storage tank (2) is introduced again because the water or the latent heat in the heat storage tank (2) is continuously heated to heat storage.

In addition, as shown in FIG. 6, when the heat storage is completed during the daytime zone where the late night power is not supplied and the heat storage tank 2 is completely shut off, and the late night power is not supplied, when the indoor switch 20 is turned on, the heat storage tank ( 2) Inside the water or heat storage material is circulated only by the operation of the circulation pump 11 formed in the inlet pipe (5), the solenoid valve 7 and the circulation pump 13 of the circulation pipe 12 is turned off By the operation of the check valve 23, the water or heat storage material does not flow into the connection pipe 6 and the circulation pipe 12, respectively, and is circulated to the inflow pipe 5 through the discharge pipe 4 and 4 'as it is, and the heat storage tank The heat storage material of (2) uses hot water and heats it.

4 to 6 operate according to the automatic control circuit (sequence diagram) of FIG.

Therefore, even though only a heating device equipped with a relatively small amount of heater is installed, heating and hot water can be instantaneously used by the user's needs, while continuous heating is performed with only a relatively small amount of heater in the midnight power time zone. It is possible to reduce the size of the whole device as well as the instantaneous heating and hot water use even if only one heater of small capacity is installed, as well as the heating device 10 without replacing the existing heat storage type midnight electric boiler and midnight electric water heater. When attached, it operates with a more improved function, so that it is possible to use the regenerative late night electric boiler and the late night electric water heater having the improved function with relatively little effort.

The above-described heat storage type midnight electric boiler and midnight electric water heater having the external heating device of the present invention are capable of quickly heating and using hot water even with a small amount of heater even in the midnight electric power time zone, and have a cost saving effect by adopting a small capacity heater. In other words, it can improve the performance of existing midnight boilers, and it distributes the midnight electric power load, thereby reducing the capital investment cost and providing better performance and economic effect.

Claims (2)

A plurality of heaters 3, 3 ′ are mounted on one side of the heat storage tank 2 in which the heat insulation layer 1 is formed, and on the other side, an inlet pipe 5 equipped with a discharge pipe 4 and a circulation pump 11 is provided. In a normal heat storage type midnight electric boiler formed to penetrate into and out of the heat storage tank (2), Separately form the external discharge pipe (4) (4 ') of the heat storage tank (2), and install a separate heating device (10) in which the heater (8) is built by the flange (9) in the middle of the heat storage tank (2) Lower connection pipe (6) of (10) is connected in communication with the discharge pipe (4 ') and the inlet pipe (5), the solenoid valve (7) in the middle of the connection pipe (6) connected to the inlet pipe (5) Mounting the A circulation pump 11 and a check valve 22 are mounted in the middle of the inflow pipe 5 and the heat storage tank 2, Another circulation pipe 12 connecting the discharge pipe 4 and the inlet pipe 5 is formed so that another circulation pump 13 and a check valve 23 are mounted in the middle of the circulation pipe 12. Regenerative midnight electric boiler equipped with an external heating device, characterized in that the connection is formed. According to claim 1, wherein a plurality of heat dissipation fins (15, 15 ') having a through hole 14 is formed at the periphery of the heater (8) inside the heating device 10, the plurality of heat dissipation fins (15) (15) Regenerative midnight electric boiler equipped with an external heating device, characterized in that the through hole 14 of the ') is formed in a zigzag shape.