KR19980087747A - Heating system including midnight electric power boiler and its boiler and control method - Google Patents

Abstract

The present invention is to execute the heating function by using the midnight power or connected to the main boiler, such as the existing electric boiler, gas boiler or oil boiler is limited to only the midnight power time zone to perform indoor heating It is to provide a heating system including a midnight electric power boiler and a boiler and a control method thereof.

To this end, the present invention is a midnight electric power boiler for providing heating water / hot water for heating the room using a late night power, the heat transfer heater is a sum of the calorific value for heating the heating water / hot water to a predetermined temperature First and second heat transfer heaters 26A and 26B corresponding to the rated calorific value; The first and second heat transfer heaters 26A and 26B are correspondingly internally partitioned by a partition wall 28 to form a central first connected to the heating water supply pipe 16 and the heating export water pipe 18. And a heat exchange tank 14 including second heat exchange parts 14A and 14B, and a first circulation part 24A spirally installed in the heat exchange parts 14A and 14B and having an inlet coupled to the hot water water pipe 20. And hot water circulation pipe 24 consisting of a second circulation portion 24B coupled to the hot water discharge pipe 22 and the outlet, the heat exchange efficiency of the heating water is improved, such a late night power boiler If it is configured in connection with the existing main boiler, the temperature deviation with respect to the heating temperature is greatly reduced, satisfactory heating efficiency is obtained and the heating cost is reduced.

Description

Heating system including midnight electric power boiler and its boiler and control method

The present invention relates to a midnight electric power boiler, and more particularly, to execute the heating function of the room independently by using the midnight electric power or to be connected to an electric boiler, a gas boiler, an oil boiler as a main boiler, The present invention relates to a midnight electric power boiler and a heating system including the boiler and a control method thereof for performing heating.

As is well known, as a means for heating the room temperature appropriately, a gas boiler or an oil boiler in which the heating water is heated by heating the water by the heat obtained during combustion of the fuel, or the oil boiler and the electric energy The electric boiler of the system which heats a heater and heats heating water by this is known.

Among them, when the gas boiler and the oil boiler heat gas or oil as fuel to generate heat of an externally set temperature, the gas boiler and the oil boiler heat the heating water circulating through the heating pipe installed for heating the room by heat. The heating of the room is performed.

In addition, the electric boiler heats the room by driving the heater installed therein to heat the temperature of the heating water circulating through the heating pipe installed for the room heating to an externally set temperature.

Typically, such gas boilers or oil boilers or electric boilers have their driving time as the continuous drive is performed to reduce the temperature difference with indoor air, especially when used in winter when the temperature difference between day and night is relatively high. This lengthening will result in an increase in fuel or electrical energy consumption, and thus an economic burden will be caused by an increase in heating costs for heating the room.

In view of this, as a result of continuous research and development on the type of heating device for increasing the driving efficiency and reducing the heating cost for the heating of the room, the late-night electric power boiler which uses the electric power of the late night time is now commercialized. It is becoming a widespread trend.

The late-night electric power boiler heats the heating water stored in the water storage tank using the late-night electric power, which is supplied at a relatively low rate in the late-night time zone where electrical energy consumption is reduced. It is designed to circulate through the heating pipe until the next night's late night time zone is used to perform the heating of the target room or to use hot water from the reservoir.

However, in the case of such a late-night electric power boiler, the heating cost can be reduced by heating by using the late-night electric power, but a single heater device for heating the heating water stored in the heat exchange tank of the boiler is installed. Therefore, the heat exchange area for the heating water can not only be limited to the single heater heating area, but the heat exchange efficiency is inevitably reduced.

In addition, the temperature of the heating water heated in the midnight electric power time zone and stored in the reservoir is inevitably lowered as time passes, and thus the heating efficiency of the room is increased as the outside temperature becomes considerably lower or nears the late night time zone of the next day. Will be degraded. Therefore, in order to properly perform the heating of the room, it is often necessary to operate the boiler in addition to the late night time zone, resulting in a situation in which the heating of the room by only the late night power is impossible.

Meanwhile, in order to change the existing electric boiler or gas boiler or oil boiler into a midnight electric power boiler, the economic burden is further increased. Accordingly, when the existing electric boiler, gas boiler, oil boiler is used as it is, As the burden of heating costs increases, it is difficult to obtain satisfactory heating efficiency.

In addition, at present, there is no proposal of a heating system having an associated operating condition for installing an additional midnight electric power boiler in the state where an existing electric boiler, gas boiler or oil boiler is already installed as a main boiler.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and its main object is to provide a plurality of heaters for heating heating water and hot water so that the sum of the heat values corresponds to the rated heat amount, and the heating is performed from the plurality of heaters. It is to provide a midnight electric power boiler which has improved the structure of heat exchange tank and heating / hot water circulation path to double the circulation efficiency of water.

Another object of the present invention is to connect the midnight power boiler to the main boiler, such as an electric boiler, gas boiler or oil boiler that is installed in the past, so that only the late night power boiler is operated in the late night power time zone, except for the late night power time. It is to provide a heating system including a midnight electric power boiler that can be heated indoors by the main boiler.

Still another object of the present invention is to connect the midnight power boiler to a main boiler such as an existing electric boiler, a gas boiler or an oil boiler in such a way that indoor heating is performed by the operation of the late night power boiler only in the late night power time zone. On the other hand, it is to provide a heating control method of a heating system including a midnight electric power boiler for the indoor heating by the main boiler other than the late night electric power time.

In order to achieve the above object, according to a preferred embodiment of the present invention by heating the heating water / hot water to a predetermined temperature using a night-time electric power having a rated heating value heating water / hot water for heating the room In the mid-night electric power boiler for providing, the electric heat heater is composed of the first and second electric heat heater, the sum of the heat output corresponding to the heating value of the rated heat for heating the heating water / hot water to a set temperature; A heat exchange tank comprising first and second heat exchangers having a cylindrical shape in which the first and second heat transfer heaters are correspondingly installed and the central portion is partitioned by a partition wall and connected to a heating water supply pipe and a heating export water pipe; It is installed in the second heat exchange unit in a spiral shape provides a midnight power boiler including a hot water circulation pipe consisting of a first circulation portion inlet coupled to the hot water water pipe and the second circulation portion coupled to the hot water discharge pipe.

In order to achieve the above another object, according to another preferred embodiment of the present invention, one end of the heating pipe is derived from one side and the main control unit drives the electrothermal heater through the heater driver based on the temperature of the heating water detected by the temperature sensor. With the main boiler; The other end of the heating pipe derived from the main boiler is coupled to the heat exchange tank through the circulation pump, and the water discharge pipe and the main boiler side to supply the heating water heated in the late night time in the heat exchange tank to the main boiler side. The heat exchange tank is connected to the water through a supplementary water pipe, and the midnight power boiler is configured to supply hot water heat-exchanged with the heating water in the heat exchange tank through a hot water discharge pipe. In the electric power time zone, the heating water heated by the electric heat heater of the heat exchange tank is circulated through the heating pipe drawn from the main boiler, and the indoor heating is performed. The heating water heated in the main boiler other than the late night power time is connected with the heating pipe. Circulated through the midnight power boiler so that room heating is achieved It provides a heating system including a boiler midnight power.

In order to achieve the above another object, according to another preferred embodiment of the present invention, in the midnight power time zone, the heating water heated in the heat exchange tank of the midnight power boiler is supplied to the main boiler through the water outlet pipe and drawn from the main boiler. After the heating pipe is made to be heated in the room, and other than the late-night power time, the heating water heated in the main boiler is heated to the room through the heating pipe and then circulated to the main boiler side through the night power boiler. In the midnight power time zone during which the midnight power boiler operates to heat the heating water, the main boiler is stopped under the control of the main controller based on the temperature of the heating water detected by the temperature sensor of the main boiler. In addition to the late night power time, the timer of the late night power boiler Provided is a control method of a heating system including a midnight power boiler in which the midnight power boiler is stopped by the result of time display.

According to the present invention made as described above, the heat exchange tank installed in the midnight electric power type boiler is partitioned into one set of heat exchangers, and each of the heat exchange units is provided with one set of hot water circulation pipes and the one space of the hot water circulation pipes By installing a set of electrothermal heaters in each section, the heat exchange efficiency is maximized, and by connecting the midnight electric power boiler to the existing main boiler in association with the late night electric power time zone, the main heating is generally heated to the main boiler. To do this.

1 is a cross-sectional view illustrating the structure of a midnight power boiler according to the present invention;

2 is a view for explaining a configuration example of a heat exchange chamber (heat exchange chamber) employed in the late-night power boiler according to the present invention shown in FIG.

3 is a connection diagram showing a configuration of a circuit for controlling the indoor heating operation of the midnight power boiler according to the present invention;

4 is a schematic diagram illustrating a state in which a midnight power boiler according to the present invention is connected to a main boiler installed in advance.

5 is a flowchart for explaining an operation of a control method of a heating system including a late-night power boiler according to the present invention.

* Description of the symbols for the main parts of the drawings *

14: heat exchange tank, 16: water supply pipe,

18: water outlet pipe, 20: supplemental water pipe,

22: hot water discharge pipe, 24: hot water circulation pipe,

26A, 26B: electric heater, 100: midnight electric power boiler,

200: Main boiler.

Hereinafter, a midnight power boiler according to the present invention will be described in detail with reference to the accompanying drawings.

1 is a cross-sectional view illustrating a structure of a midnight power boiler according to the present invention. According to the same figure, the front of the door 2 in which the door lock part 4 is formed on the upper side of the corresponding midnight power boiler body is in the midnight power time zone. An earth leakage circuit breaker 6 for preventing and alarming a short-circuit electric power leakage is installed, and adjacent to the temperature setting button 8 and its temperature setting button 8 for setting up / down the heating temperature of the room. A temperature display unit 10 for visually displaying the temperature set by the temperature setting button 8 and the current room temperature, and a power lamp 12 for displaying the supply state of the operating power to the corresponding midnight power boiler are provided. have.

In addition, according to the late-night power boiler according to the present invention is provided with a heat exchange tank 14 for heating the heating water having a constant volume therein, the heat exchange tank 14, the corresponding night power boiler is independent heating Heating water supply pipe 16 for inflow of heating water from the heat storage tank when connected to a heat storage tank (not shown) to perform a function, and a heating export pipe 18 for output of heating water to the heat storage tank side. Is connected.

Here, the heat exchange tank 14 has a generally cylindrical shape in order to prevent breakage of the water tank due to thermal expansion generated when the heating water introduced therein is heated for the heat exchange operation as shown in FIG. 2. It is formed of a set of first and second heat exchange parts 14A, 14B. That is, the heat exchange tank 14 is produced by the combination of the cylinder in the form in which one side is in communication, or both sides are made by forming in the form in which the center portion is concaved inward while forming a semi-cylindrical shape, The central portion is provided with a partition wall 28 having a constant length along its extending direction so that the interior of the corresponding heat exchange tank 14 is divided into first and second heat exchange portions 14A and 14B. Preferably, the partition wall 28 which partitions the inside of the heat exchange tank 14 into the first and second heat exchange parts 14A and 14B is an extension of the heat exchange tank 14 as can be seen in FIGS. 1 and 2. The space for the passage of the hot water circulation pipe 24 for the supply of hot water is provided while the heat is exchanged between the first and second heat exchange parts 14A and 14B so as to be disposed a little shorter than the length. To form.

In addition, the hot water circulation pipe 24 is the first circulation portion 24A and the heat exchange tank 14 arranged in a spiral shape to increase the heat exchange efficiency in the first heat exchange portion 14A of the heat exchange tank 14. The second heat exchange part (14B) of the second circulation part (24A) and the second circulation part (24B) arranged in a spiral like the first circulation part (24A) and the second circulation part ( 24B are communicated with each other through the space provided behind the partition wall 28. The inlet of the first circulation portion 24A of the hot water circulation pipe 24 is a hot water water pipe 20 for receiving hot water water from a heat storage tank when a corresponding midnight power boiler is installed for heating independently. On the other hand, the outlet of the second circulation portion 24B is coupled to the hot water discharge pipe 22 for externally discharging the heated hot water in the heat exchange tank 14.

In addition, externally detachable heat transfer heaters 26A and 26B are interpolated in the first and second heat exchange units 14A and 14B of the heat exchange tank 14, and the pair of heat transfer heaters 26A and 26B The sum of the calorific values is generally arranged at a capacity corresponding to the calorific value of the rating determined for heating the heating water. Therefore, according to the present invention, as the plurality of heat transfer heaters 26A and 216B are employed for the rated heat amount, the heat exchange area for heating the heating water / hot water is increased and heat exchange efficiency is higher than that of the single heat transfer heater. Can be improved.

3 is a connection diagram showing a configuration of a circuit for controlling an indoor heating operation of a midnight power boiler according to the present invention, in which the control unit CON is a time input of a midnight power time zone according to a timer TM timekeeping operation. Based on the set temperature received from the temperature setting button 8 to control the operation of a set of electric heaters 26A and 26B and the circulation pump CP according to the heating water temperature detection result of the temperature sensor TS. Switching control is performed.

In addition, the overheat prevention switch (S) is a device that is switched off by receiving the switching control according to the detection of the overtemperature state from the control unit (CON) in the constant switching connection state, to prevent the malfunction of the corresponding boiler, the temperature switch (TIC) Is a device provided to control the temperature of the heating water / hot water by repeatedly opening and closing an operation by switching control of the controller CON according to the temperature sensing result of the heating water by the temperature sensor TS.

Further, the first switching relay MC1 is connected in series with the overheat protection switch S and the temperature switch TIC, and correspondingly to the switching state of the overheat protection switch S and the temperature switch TIC. A switching operation of the first relay switch MC1-1 that operates to control the supply state of the commercial power to the pair of electrothermal heaters 26A and 26B, and a supply state of the commercial power to the second switching relay MC2. The first inversion relay switch MC1-2 for intermitting the switch is inverted from the first relay switch MC1-1 and switched.

The second switching relay MC2 is connected in series with the first inversion relay switch MC1-2, and is operated in accordance with the switching of the first inversion relay switch MC1-2 to operate the circulation pump CP. The second relay switch (MC2-1) for intermittent supply of the commercial power to the power supply to the) is switched.

That is, in the above circuit configuration, when the set of electric heaters 26A and 26B is driven by a commercial power source, the circulation pump CP is stopped so that circulation of the heating water is not performed. When a state of heating to a temperature close to the set temperature is detected by TS, the circulation pump CP is driven to stop the driving of the pair of electric heaters 26A and 26B, thereby circulating the heating water. Will be done.

Next, the case where the midnight power boiler according to the present invention configured as described above performs heating operation independently will be described in detail.

First, the corresponding midnight power boiler is coupled to the heat storage tank through the hot water water pipe 20, the heating water supply pipe 16 and the heating export water pipe 18, the power supply by the lighting state of the power lamp 12 When a predetermined set temperature is set by a button operation of the temperature setting button 8 in a state where the state is visually confirmed, the control unit CON detects the arrival of the late night power time zone by the clocking operation of the timer TM. The first switching relay MC1 is energized by switching the temperature switch TIC to control the temperature switch TIC. As a result, the first relay switch MC1-1 controlled by the first switching relay MC1 is switched on. The pair of heat transfer heaters 26A and 26B are in a heat generating operation.

In this case, in the heat exchange tank 14, the heating water supplied from the heat storage tank through the heating water supply pipe 16 is heated by the first heat transfer heater 26A while passing through the first heat exchange part 24A. The heating water flowing into the second heat exchange part 24B side through the space provided behind the partition wall 28 is also heated by the second heat transfer heater 26B.

The hot water supplied to the hot water water pipe 20 stored in the first heat exchange part 14A of the heat exchange tank 14 is the electric heater (10) in the first and second heat exchange parts 14A and 14B. Heat exchanged with the heating water heated by 26A and 26B, and heated by heat from the heat transfer heaters 26A and 26B, and discharged to the water supply source such as the kitchen or bathroom through the hot water discharge pipe 22 as necessary. do.

In this state, when it is determined that the temperature of the heating water in the heat exchange tank 14 detected by the temperature sensor TS approaches the preset set temperature, the control unit CON determines that the temperature switch TIC is turned on. By switching off the first relay switch MC1-1 by switching off, the set of heat transfer heaters 26A and 26B are operated, and the first inversion relay switch MC1-2 is inverted and switched. As the second switching relay MC2 is energized, the second relay switch MC2-1 is switched on to operate the circulation pump so that the heating water in the heat exchange tank 14 is heated and exported. ) Is supplied to the heat storage tank and supplied to the heating cycle including the heating pipe for heating the room.

According to the late-night electric power boiler according to the present invention made as described above, the heat exchange tank 14 is partitioned into a plurality of heat exchange parts 14A, 14B by the partition wall 28, and the heat exchange parts 14A, 14B partitioned respectively. Is formed so that the hot water circulation pipe 24 composed of a plurality of circulation sections 24A and 24B extends in a spiral shape, and in each of the circulation sections 24A and 24B, a plurality of heat transfers each having a rated calorific value. By installing the heaters 26A and 26B, not only the heating efficiency and the heat exchange efficiency of the heating water flowing into the heat exchange tank 14 and the hot water circulating in the hot water circulation pipe 24 can be maximized, but also the electrothermal heater This has the advantage that it is possible to reduce the power applied to the 26A and 26B.

Next, a heating system including a midnight power boiler according to the present invention having the above-described configuration will be described in detail with reference to the accompanying drawings.

FIG. 4 is a schematic diagram illustrating a state in which the midnight power boiler according to the present invention described with reference to FIGS. 1 to 3 is connected to a main boiler installed in the related art. The circulating pump in which the heating pipe 30 is drawn out from the main boiler 200 made of a boiler, an electric boiler, and extends over the entire area of the heating room 32, and then the pumping drive is controlled by the late-night power boiler 100. It is connected to the water supply pipe 36 of the midnight power boiler 100 through the CP, and circulates and discharges the heating water introduced through the water supply pipe 36 in the heat exchange tank 14 therein. The outlet pipe 38 drawn out from the midnight power boiler 100 is connected to the inlet side of the main boiler 200.

Here, the first circulation part 24A installed in the first heat exchange part 14A among the heat exchange tanks 14 installed in the midnight power boiler 100 is connected to the main boiler 200 through the supplementary water pipe 34. The other end is connected to a water supply port extending from the heating tank 40 of ( It is connected to a predetermined hot water supply source side via a pipe 35.

On the other hand, according to the main boiler 200, by installing a temperature sensor 42 on one side of the heating tank 40 for heating the heating water to discharge through the heating pipe 30 to the water temperature of the heating water stored therein The main controller 44 receives the detected value of the heating water temperature by the temperature sensor 42 and performs a calculation process to operate the heater driver 46 according to a comparison result with the temperature set value set in the corresponding main boiler 200. By driving, the heat transfer heater 48 installed in the heating bath 40 is operated.

In the heating system including the midnight power boiler according to the present invention configured as described above, when the arrival of the midnight power time zone is revealed by the timer TM (see FIG. 3) of the midnight power boiler 100, a pair of electric heaters ( 26A and 26B are operated to heat the heating water introduced into the heat exchange tank 14 through the water supply pipe 36, and the heated heating water of the main boiler 200 through the water discharge pipe 38. 40 is then introduced to the heating room 32 side through the heating pipe 30 to be heated.

At this time, in the main control unit 44 of the main boiler 200 as a result of comparing the water temperature for the heating water in the heating tank 40 detected by the temperature sensor 42 with a preset water temperature set value, heating By stopping the driving of the heater driving unit 46 to stop the heating operation of the water, the electric heating heater 48 is not operated, thereby causing room heating by the main boiler 200 to be stopped.

On the other hand, when the late-night power time zone elapses by the timer TM of the late-night power boiler 100, the operation of one set of the electric heaters 26A and 26B of the late-night power boiler 100 is stopped. When the temperature lowered by the temperature sensor 42 of the main boiler 200 is sensed, the heater driving unit 46 is driven to resume the heating operation of the heat transfer heater 48 in the heating bath 40.

Next, the operation of the heating system including the late-night power boiler according to the present invention shown in FIG. 4 will be described in detail with reference to the flowchart of FIG. 5.

First, the main boiler 200 in a state in which the late-night power boiler 100 for heating in the late-night power time zone and the main boiler 200 for heating in a time zone other than the night-time power time zone are connected to each other. In the case of heating by (), for example, the temperature setting button 8 of the main boiler 200 or the late-night power boiler 100 is pressed to set a predetermined heating temperature (step 50).

In that state, the process proceeds to step 51 and the control unit CON of the late-night power boiler 100 determines whether the late-night power time zone has arrived as a result of the clocking operation by the timer TM.

As a result of the determination, when the clock time of the timer TM does not reach the midnight power time zone, the control proceeds to step 52, where the heater driving unit 46 of the main boiler 200 continues the driving operation and the heating tank. The heating heater 48 in the 40 is operated to perform indoor heating.

However, if it is determined that the time counted by the timer TM arrives at the midnight power time as a result of the determination in step 51, the first switching relay is switched on by switching on the temperature switch TIC as shown in FIG. By operating the MC1, the first relay switch MC1-1 is switched on, and a pair of heat transfer heaters 26A and 26B installed in the heat exchange tank 14 of the night power boiler 100 are supplied to the heating water. To perform the heating operation (step 53).

Meanwhile, in step 54, the main controller 44 of the main boiler 200 detects the water temperature through the temperature sensor 42 for the heating water in the heat storage tank 40 and detects the water temperature of the heating water with a preset temperature. Will be compared.

At this time, in step 55, the main controller 44 of the main boiler 200 determines whether the water temperature of the heating water in the heating bath 40 detected by the temperature sensor 42 is close to a preset set temperature. When it is determined that the water temperature of the heating water is close to the set temperature, the control proceeds to step 56 whereby the driving of the heater driving unit 46 is stopped to thereby transfer the electric heat heater in the heating tank 40 ( The heating operation for 48) is stopped to allow the indoor heating by the corresponding main boiler 200 to be stopped.

On the other hand, in the late-night power boiler 100, the heating water introduced through the heating pipe 30 from the heating tank 40 of the main boiler 200 independently of the state in which the heating operation of the main boiler 200 is stopped. It is heated in the heat exchange tank 14 and circulated to the heating bath 40 so that the heating is continuously made, the heat exchange tank 14 by the temperature sensor TS as shown in FIG. When it is detected that the proper temperature is maintained with respect to the preset temperature by detecting the temperature inside the first switch, the temperature switch TIC is switched off to stop the operation of the first switching relay MC1. -1) is switched off so that the heating operation by the pair of electric heaters 26A and 26B is stopped, the first inversion relay switch MC1-2 is inverted and switched on so as to switch on the second switching relay MC2. By operating the second reel As the lay switch MC2-1 is switched on, the circulation pump CP performs a pumping operation. However, the heating operation of the heat transfer heaters 26A and 26B and the pumping operation of the circulation pump CP are repeatedly performed in accordance with the mutual inversion operation whenever the water temperature of the heating water is changed.

In addition, the hot water circulation pipe 24 installed in the heat exchange tank 14 of the late night power boiler 100 circulates the hot water stored in the heating tank 40 of the main boiler 200 through the hot water discharge pipe 35. By discharging to a predetermined hot water supply side, it is possible to use separate hot water.

Next, in step 57, the control unit CON of the late night power boiler 100 determines whether the time indicated by the timer TM has passed the late night power time zone.

As a result of the determination, when it is determined that the clock time of the timer TM has passed the midnight power time zone, the control proceeds to step 58, instead of stopping the indoor heating operation by the corresponding late night power boiler 100, As the temperature sensor 42 of the main boiler 200 detects a temperature lowering state of the heating water in the heating tank 40, the indoor heating is resumed by heating the electric heater 48 in the heating tank 40. Will be done.

The present invention made as described above is not limited to the embodiment, and can be carried out in various ways without departing from the gist of the bar, the heat exchange tank 14 and the hot water circulation pipe 24 And one set of the heat transfer heaters 26A and 26B are horizontally arranged so as to circulate the heating water and the hot water in the horizontal direction, but for example, the heat exchange tank 14 and the hot water circulation pipe 24 and the set of heat transfer heaters ( 26A, 26B) and vertically arrange the respective pipes for supplying and discharging heating water and hot water (or replenishing water) with respect to the heat exchange tank 14 and the hot water circulation pipe 24 in the vertical direction. It is also possible to configure so that the hot water circulation to the.

The midnight power boiler according to the present invention made as described above is designed to form a substantially cylindrical shape with a plurality of heat transfer heaters are adopted for the heat generation of the rated heat, the heat exchange efficiency of the heating water is significantly improved. In addition, by the heating system according to the present invention configured by connecting such a midnight power boiler with an existing main boiler, heating is performed by a midnight power boiler using a relatively inexpensive late night power in the midnight time zone, while the main boiler is not in the late night time zone. As a result of the heating, the temperature deviation with respect to the heating temperature is greatly reduced to obtain a satisfactory heating efficiency and to reduce the heating cost.

Claims (5)

In the midnight electric power boiler which provides heating water / hot water for heating the room by heating the heating water / hot water to the set temperature by using an electric heat heater having a rated heat output by using the midnight electric power, The heat transfer heater is composed of first and second heat transfer heaters 26A and 26B whose sum of calorific values corresponds to the rated calorific value for heating the heating water / hot water to a set temperature; The first and second heat transfer heaters 26A and 26B are correspondingly insulted, and the central portion is partitioned by the partition wall 28 to connect the heating water supply pipe 16 and the heating export pipe 18 to each other. A heat exchange tank 14 composed of first and second heat exchange portions 14A and 14B, The first and second heat exchange parts (14A, 14B) are installed spirally in the first inlet is coupled to the hot water pipe 20, the first circulation portion 24A and the outlet is coupled to the hot water discharge pipe (22) Night power boiler characterized in that it comprises a hot water circulation pipe (24) consisting of two circulation (24B). The partition wall 28 which divides the heat exchange tank 14 into the first and second heat exchange parts 14A and 14B is heated in the first and second heat exchange parts 14A and 14B. Midnight electric power boiler, characterized in that the length is formed to form a space in which the alternating current of the heating water and the first and second circulation portion (24A, 24B) of the hot water circulation pipe (24) communicate with each other. One end of the heating pipe 30 is drawn from one side and the main boiler 44 drives the electrothermal heater 48 through the heater driver 46 based on the temperature of the heating water detected by the temperature sensor 42. 200 and; The other end of the heating pipe 30 derived from the main boiler 200 is coupled to the heat exchange tank 14 through the circulation pump (CP), and the heating water heated in the night time zone in the heat exchange tank 14. The heat exchange tank 14 is connected to the water outlet pipe 38 for supplying water to the main boiler 200 and the supplemental water pipe 34 through the supplementary water pipe 34 to supply water to the main boiler 200. In the late-night power boiler 100 is configured to supply the hot water heat-exchanged with the heating water through the hot water discharge pipe 22 is connected in combination, The midnight power boiler 100 circulates the heating water heated by the heat transfer heaters 26A and 26B of the heat exchange tank 14 through the heating pipe 30 derived from the main boiler 200 in the midnight power time zone. The indoor heating is made, and in addition to the late night power time, the heating water heated in the main boiler 200 is circulated through the heating pipe 30 and the late night power boiler 100, so that the indoor heating is performed. Heating system comprising a midnight electric power boiler. 4. The cylindrical first and second heat exchangers 14A of claim 3, wherein the heat exchange tank 14 of the late night power boiler 100 is partitioned by the partition 38 to heat the heating water in the late night time zone. 14B), one end of which is coupled to the supplemental water pipe 34 in the first and second heat exchange parts 14A and 14B, and heated by the first and second heat transfer heaters 26A and 26B. A hot water circulation pipe 24 for supplying hot water heat-exchanged with heating water is disposed in a spiral shape, and the partition wall 28 dividing the heat exchange tank 14 into the first and second heat exchange parts 14A and 14B. ) Denotes a space where the alternating current of the heated water heated in the first and second heat exchange parts 14A and 14B and the first and second circulation parts 24A and 24B of the hot water circulation pipe 24 communicate with each other. Heating system comprising a midnight power boiler, characterized in that installed in the length to form. In the midnight electric power time zone, the heating water heated in the heat exchange tank 14 of the midnight electric power boiler 100 is supplied to the main boiler 200 through the water outlet pipe 38 and the heating pipe 30 derived from the main boiler 200. The heating of the room is made through), and in addition to the late-night power time, the heating water heated in the main boiler 200 is heated through the heating pipe 30, and then through the late-night power boiler 100. In the mid-night power time zone for circulating to the main boiler 200, the late-night power boiler 100 operates to heat the heating water of the heating water detected by the temperature sensor 42 of the main boiler 200. While the main boiler 200 is stopped by the control of the main controller 44 based on the temperature, the core is driven by the timer TM of the late night power boiler 100 except for the late night power time. Method of controlling a heating system comprising a late-night power boiler, characterized in that the power boiler 100 is shut down.