KR101001336B1 - Electric type heating system and control method thereof - Google Patents

Abstract

PURPOSE: An electrical heating apparatus and a control method thereof are provided to enable a heating unit to be miniaturized and to enhance energy efficiency since the hot water, which is heated using electricity along with a heating panel, is directly supplied to the indoor floor. CONSTITUTION: An electrical heating apparatus comprises a heating panel(10), a heating unit(20), a reservoir tank(30), a sensor unit(40) and a controller(50). The heating panel includes a lower panel and an upper panel(12) and is installed on the indoor floor. A path(L) is formed on the top of the heating panel in zigzags. The lower panel comprises an inlet(P1) and an outlet(P2). The upper panel is bonded to the top of the lower panel by closing the path. For the heating unit, a heating tank(21) is installed on the floor along with the heating panel. An electric heater(22), which heats the heating-purpose water, and a circulating pump(23), in which the cooling-purpose water circulates, are installed in the heating tank.

Description

ELECTRIC TYPE HEATING SYSTEM AND CONTROL METHOD THEREOF

The present invention relates to a heating apparatus, and more particularly, to an electric heating apparatus for heating an interior of a room by heating hot water heated using electricity to flow through a channel of a heating panel, and a control method thereof.

In general, heating devices for indoor heating in homes and small buildings, such as hot water or steam heated by proper fuel combustion and energy conversion, flow along the heating pipes buried on the floor or wall of the room to maintain the temperature of the room. It is a facility to maintain properly.

Such a heating device is a combustion type (e.g., a gas boiler or an oil boiler, etc.) using combustion heat generated by burning gas or oil according to the type of heat source used, and an electric type (e.g., electric) using heat generated by an electric heater. Boiler, etc.).

In the case of the combustion heating device, although the raw water in the storage tank is heated in a short time, it can be supplied to the heating water, but there is a risk of explosion due to noise and gas leakage generated during the combustion of oil and gas.

In addition, the combustion type heating device has a disadvantage in that the heat efficiency is inferior in most of the indirect heating method, and the cost of the heating device itself is increased because the components used for the storage, supply, combustion and exhaust of gas and oil are expensive.

In addition, the combustion heating apparatus has a disadvantage in that a separate boiler room adjacent to the outside is provided to smoothly supply and exhaust air required for combustion of fuel.

Therefore, in recent years, electric heating devices as part of efforts to solve the shortcomings of the combustion heating device as described above, to cope with the depletion of fossil fuels such as natural gas, petroleum, and coal and to reduce environmental pollution by fossil fuels. Is the preferred trend.

Electric heating equipment is an energy source of cheap electricity in high oil prices, and above all, it is important as an eco-friendly facility because it does not emit air pollutants.

In addition, the electric heating device is more hygienic than the combustion heating device, has no combustion noise, the equipment for its operation is simple, and the risk of accidents due to gas poisoning and explosion is relatively small, and thus the use cases are increasing. to be.

The electric heating device is manufactured to perform indoor heating and hot water functions by arranging an electric heater that is generated by electricity in a water tank to directly and indirectly heat circulated raw water, and supply heated heating water through a heating pipe. .

However, the conventional electric heating device is a method of heating raw water stored in the reservoir with an electric heater. When the low capacity in the reservoir is large, the heat transfer is not only very large, but also the initial heating is performed because the heating time of the raw water stored in the reservoir is long. The disadvantage is that it takes a long time.

In addition, there is a disadvantage in that the consumption of unnecessary energy is large in order to maintain the amount of water supplied by the circulation pump and to keep it always hot regardless of the room temperature for heat storage.

An embodiment of the present invention is to increase the energy efficiency by miniaturizing the heating unit so that the heating unit can be directly supplied to the heating surface using electricity together with the heating panel on the floor of the room for heating to increase energy efficiency, minimizing the initial heating time It is intended to provide a heating device and a control method thereof.

In addition, the present invention is to provide an electric heating device and a control method for achieving efficient heating by partially supplying the heating water to the heating panel.

In addition, by miniaturizing the heating unit for supplying the heating water to provide an electric heating device and a control method for minimizing the installation cost by modularly installed with a heating panel in the room for heating.

According to an aspect of the present invention, the heating is composed of a lower panel having a flow path forming inlet and outlet on one side and an upper panel bonded to the lower panel to seal the flow path is installed on the floor of the room for heating panel; A heating tank mounted on one side of the heating panel and connected to the inlet and the outlet is installed on the bottom surface together with the heating panel, and a circulation pump for circulating the electric heater for heating the heating water and the heating water inside the heating tank. Heating unit is configured; A reservoir tank connected to a supplement pipe to supply supplement water to the heating tank and installed at one side of the room; A sensor unit for detecting a panel temperature of the heating panel and a heating water temperature in the heating tank and outputting a signal thereof; And a controller for controlling the operation of the electric heater and the circulation pump according to the detection signal of the sensor unit.

The heating panel has a zigzag-shaped flow path is formed in the intaglio on the upper surface, the lower panel is formed in one side side adjacent to the inlet and outlet connected to the heating tank of the heating unit in parallel with the flow path; And an upper panel which is sealed by sealing a flow path on an upper surface of the lower panel.

The heating unit has an inlet end and an outlet end connected to the inlet and the outlet of the heating panel, respectively, on both sides of the front side, and one side of the rear side is connected to the supplemental pipe of the reservoir tank, and a heating tank formed therein; An electric heater installed through one side of the heating tank and disposed in the heating chamber to heat the heating water inside the heating chamber according to a control signal of the controller; A circulation pump installed through the other side of the heating tank to circulate the heating water in the flow path of the heating panel according to the control signal of the controller and connected to the outlet end in the heating chamber; A heating cover installed at an upper portion of the heating tank to seal the heating chamber and at one side of which a drain cock is installed; A heater cover installed at one side of the heating tank; And it may include a pump cover installed on the other side of the heating tank.

The circulation pump includes a pump motor driven and controlled according to the control signal of the controller; And a pump housing which is integrally formed with the pump motor and has a discharge port exposed to the heating chamber and a bent tubular suction end fitted into the outlet end of the heating tank.

delete

The sensor unit includes a panel temperature sensor installed on one side of the heating panel; And

It is installed on the other side of the heating tank may be composed of a heating water temperature sensor disposed inside the heating tank.

According to another aspect of the invention, the lower panel having a flow path forming inlet and outlet on one side and the upper panel bonded to the lower panel to seal the flow path is installed on the floor of the room for heating, Two or more heating panels each of which is connected to one end of each flow path through a connecting pipe; Flow path switching means configured on one side of the connector on the one heating panel to connect the flow paths of the neighboring heating panels; A heating tank mounted on one side of the heating panel and connected to the inlet and the outlet through the inlet and the outlet is installed on the bottom surface together with the heating panel, and the heating tank is configured to heat heating water inside the heating tank. A heating unit including a circulation pump configured to circulate the heater and the heating water; A reservoir tank connected to a supplement pipe to supply supplement water to the heating tank and installed at one side of the room; A sensor unit for detecting a panel temperature of the one heating panel and a heating water temperature in the heating tank and outputting a signal thereof; And it may include a controller for controlling the operation of the electric heater and the circulation pump in accordance with the detection signal of the sensor unit.

The connection pipe may be installed with sealing rings fitted to both sides for maintaining airtightness between each of the connectors of the one heating panel and the other heating panel adjacent thereto.

The flow path switching means includes a valve installation hole formed in a circular shape on one side of the connector branched between the lower panel of the one heating panel and the lower panel of the other heating panel adjacent thereto; A switching valve installed in the valve installation hole via a sealing ring up and down, and having two switching paths different in the vertical direction; It may be composed of a check panel installed on the upper surface of the lower panel around the valve installation hole for hermetically supporting the upper portion of the switching valve.

The switching valve is a cylindrical valve body; Upper and lower insertion ends formed at centers of upper and lower surfaces of the valve body and inserted into insertion holes of the check panel and the lower panel, respectively; A first conversion flow path having an “a” shape formed at an inner upper portion of the valve body; And it may include a second conversion channel of the "-" shaped formed on the inner lower portion of the valve body.

The heating unit has an inlet end and an outlet end connected to the inlet and the outlet of the heating panel, respectively, on both sides of the front side, and one side of the rear side is connected to the supplement pipe of the reservoir tank, and a heating tank in which a heating chamber is formed. ; An electric heater installed through one side of the heating tank and disposed in the heating chamber to heat the heating water inside the heating chamber according to a control signal of the controller; A circulation pump installed through the other side of the heating tank to circulate the heating water in the flow path of the heating panel according to the control signal of the controller and connected to the outlet end in the heating chamber; A heating cover installed at an upper portion of the heating tank to seal the heating chamber and at one side of which a drain cock is installed; A heater cover installed at one side of the heating tank; And it may include a pump cover installed on the other side of the heating tank.

In addition, the control method of the electric heating apparatus of the present invention comprises a first step of inputting a heating set temperature through a controller; A second step of detecting a panel temperature of the heating panel and a heating water temperature of heating water in a heating tank from a panel temperature sensor and a heating water temperature sensor; A third step of controlling the circulation pump and the electric heater when the set temperature is less than the panel temperature by comparing the set temperature with the panel temperature; In the third step, when the set temperature is equal to or higher than the panel temperature, when the heating water temperature is lower than the panel temperature by comparing the heating water temperature with the panel temperature, the circulating pump is stopped, and the electric heater is controlled to operate. step; In the fourth step, when the heating water temperature is above the panel temperature, when the heating water temperature is above the set temperature by comparing the heating water temperature with the set temperature, the circulation pump is operated, the electric heater is stopped and controlled, If the heating water temperature is less than the set temperature, it may include a fifth step of controlling the operation of the circulation pump and the electric heater.

The embodiment of the present invention can increase the energy efficiency and minimize the initial heating time by installing a heating unit in a small size to directly supply the heated heating water using electricity together with the heating panel on the floor of the room for heating. have.

In addition, it is possible to partially supply the heating water to the plurality of heating panels to increase the efficient heating and energy efficiency.

In addition, by miniaturizing the heating unit for supplying the heating water can be installed in a modular room with a heating panel in the room for heating can minimize the equipment cost.

1 is a partial cutaway perspective view of a room to which an electric heating device according to an embodiment of the present invention is applied.
2 is a partially exploded perspective view of the electric heating apparatus according to the embodiment of the present invention.
Figure 3 is an exploded perspective view of the flow path switching means applied to the electric heating apparatus according to an embodiment of the present invention.
Figure 4 is a cross-sectional view of the flow path switching means applied to the electric heating apparatus according to an embodiment of the present invention.
5 is a working principle of the flow path switching means applied to the electric heating apparatus according to an embodiment of the present invention.
Figure 6 is a flat cross-sectional view of the heating unit applied to the electric heating apparatus according to an embodiment of the present invention.
7 is a cross-sectional view of a reservoir tank applied to the electric heating device according to an embodiment of the present invention.
8 is a control blow diagram of the electric heating apparatus according to the embodiment of the present invention.
9 is a control flowchart of the electric heating apparatus according to the embodiment of the present invention.

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

1 is a partial cutaway perspective view of a room to which an electric heating device according to an embodiment of the present invention is applied.

Referring to FIG. 1, the electric heating apparatus according to the present embodiment includes a heating panel 10, a heating unit 20, a reservoir tank 30, a sensor unit 40, and a controller 50.

First, the heating panel 10 is a lower panel 11 having a flow path L for forming an inlet P1 and an outlet P2 on one side, and the lower panel 11 are joined to the lower panel 11 to form the flow path L. Consisting of the upper panel 12 is installed in the upper state in the state of interposing the heat insulating material (2) on the floor (F) of the room for heating.

As shown in FIG. 1, in this embodiment, two heating panels 10 are applied, but one or two or more heating panels 10 may be used depending on the width of the floor surface F for heating. The above can be applied.

As shown in FIG. 2, the lower panel 11 has a zigzag flow path L formed in an intaglio on an upper surface thereof, and at one side thereof, the lower panel 11 is connected to the flow path L with an inlet port P1. Outlets P2 are formed side by side.

In addition, the upper panel 12 is bonded to the upper surface of the lower panel 11 to seal the flow path (L), where the bonding between each other is bonded using an adhesive (not shown) that can be watertight.

Here, the material of the lower panel 11 may be applied to the fiber-reinforced plastic (FRP) material, the upper panel 12 may be applied to the epoxy resin material that can be used as the floor surface of the room, but It is not limited.

On the other hand, if only one heating panel 10 is installed on the bottom surface (F), as in this embodiment, when two or more heating panels 10 are installed, as shown in Figure 3 And connector (CL1, CL2) branching from one side of the flow path (L) of each heating panel 10, each of the connector (CL1, CL2) is connected to each heating panel through the connection pipe (CP1, CP2). Through the flow path (L) on the (10) to ensure that the heating water is evenly circulated.

At this time, the connecting pipes CP1 and CP2 have sealing rings SR for maintaining airtightness between each of the connection ports CL1 and CL2 of one heating panel 10 and the other heating panel 10 adjacent thereto. It is fitted and installed.

In addition, as in the present embodiment, when two or more heating panels 10 are installed, a flow path switching means is provided at one side of the connector CL2 in which one side connection pipe CP2 of one side heating panel 10 is installed. It is possible to increase the heating efficiency by enabling the supply and blocking of the heating water to the flow path (L) of the other heating panel (10).

That is, the flow path switching means is one side connection (CL2) and the corresponding flow path (L2) branched between the lower panel 11 of one heating panel 10 and the lower panel 11 of the other heating panel 10 adjacent thereto. ) Forms a valve installation hole 13 in a circle in a portion where "T" is connected.

As shown in FIG. 4, the valve mounting hole 13 is provided with a switching valve 14 via a sealing ring SR up and down.

At this time, the switching valve 14 has two different paths (L1, L2) up and down therein, such a switching valve 14 is provided with a cylindrical valve body 15, the valve body Upper and lower insertion ends E1 and E2 are formed at the center of the upper and lower surfaces of the 15.

In addition, the switching flow path formed inside the valve body 15 has a first switching flow path L1 having an "a" shape on the upper portion and a second switching flow path L2 having a "o" shape on the lower portion. ) Is formed.

On the other hand, the upper part of the lower panel 11 around the valve installation hole 13, the inspection panel 16 is configured separately instead of the upper panel 12 is installed to function as an inspection opening. That is, the inspection panel 16 seals the connection ports CL1 and CL2 together with the connection pipes CP1 and CP2.

In addition, an insertion hole (H) is formed in each of the lower panel (11) and the inspection panel (16) of the one side heating panel (10) corresponding to the valve installation hole (13). The lower insertion end E2 and the upper insertion end E1 of the selector valve 14 are fitted respectively.

That is, as shown in FIG. 5, in a state in which the first switching passage L1 of the switching valve 14 is connected, the heating water circulating through the flow path L of the one heating panel 10 is connected to the other heating panel 10. In order to block the one side of the flow path (L) to be supplied and circulated to the flow path (L) of the, connecting the flow path (L) and one side connection port (CL2) (C1), the second of the switching valve (14) In the state in which the switching flow path L2 is connected, the heating water is connected to the flow path L so as to circulate only the flow path L of the heating panel 10 on one side, and is disconnected from the one end connection CL2. (C2)

And in one side on the one side heating panel 10, as shown in Figure 2, the heating unit 20 is mounted.

Heating unit 20 is a heating tank 21 is connected to the inlet (P1) and the outlet (P2), is installed on the floor (F) of the room together with the heating panel 10 on one side, the heating tank 6, the electric heater 22 which heats heating water, and the circulation pump 23 which circulates heating water are comprised, as shown in FIG.

That is, the heating tank 21 forms a heating chamber HC having a space therein, and an inlet end PP1 and an outlet end PP2 are formed at both sides of the front surface thereof, so that the inlet port of the heating panel 10 is formed. It is connected to P1) and the outlet port P2 through the sealing ring SR, respectively.

In addition, the rear surface of the heating tank 21 is connected to the replenishment pipe 31 of the reservoir tank 30 to one side is configured to receive the replenishment water.

In addition, the electric heater 22 is installed through one side of the heating tank 21 and disposed in the heating chamber HC.

The electric heater 22 is configured to heat the heating water inside the heating chamber HC according to the control signal of the controller 50.

In addition, the circulation pump 23 is installed through the other side of the heating tank 21 is configured to circulate the heating water.

The circulation pump 23 is connected to the outlet end PP2 in the heating chamber HC to circulate the heating water in the flow path L of the heating panel 10 according to the control signal of the controller 50. It is configured.

That is, the circulation pump 23 is configured to be integrally formed with the pump motor 3 and the pump motor 3 which are driven and controlled according to the control signal of the controller 50, and are exposed to the heating chamber HC. (6) and a pump housing (4) in which a bent tubular suction end (5) is fitted which is fitted into the outlet end (PP2) of the heating tank (21).

In addition, a heating cover 24 is installed at an upper portion of the heating tank 21 to seal the heating chamber HC, and a drain cock 25 is installed at one side of the heating cover 24.

Here, the drain cock 25 is used for the purpose of removing the heating water in the case of repairing the heating panel 10 or replacing the heating water, and is usually kept in a state of being fastened on the heating cover 24. do.

In addition, a heater cover 26 and a pump cover 27 for protecting the electric heater 22 and the circulation pump 23 are installed at one side and the other side of the heating tank 21, respectively.

And the reservoir tank 30, as shown in Figure 7, the replenishment pipe 31 is provided at the bottom to supply the replenishment water to the heating tank 21, the replenishment pipe 31 is the heating tank It is connected to the back side of 21.

In addition, an upper cap 34 is fastened to a refill port for refilling heating water in an upper portion of the reservoir tank 30, and an air hole 35 is maintained in the upper cap 34 to maintain an internal pressure at atmospheric pressure. Form.

The reservoir tank 30 is installed on one side of the wall of the room, and is installed at a higher position than the heating tank 21 to replenish the heating water by gravity.

In addition, the reservoir tank 30 has a floating water level gauge 33 using the color ball 32 is integrally installed on the front surface thereof, and the supplemental pipe 31 is embedded inside the wall to heat the bottom portion. It can be connected to the tank 21.

The sensor unit 40 detects the panel temperature of the heating panel 10 and the heating water temperature inside the heating tank 21 and outputs the signal.

That is, the sensor unit 40 is installed on the panel temperature sensor 41 installed on one side of the heating panel 10 and the other side of the heating tank 21 is disposed inside the heating chamber HC. It consists of a heating water temperature sensor 42.

Thus, the controller 50, as shown in Figure 8, according to the detection signal of the panel temperature sensor 41 and the heating water temperature sensor 42 of the electric heater 22 and the circulation pump 23 To control operation.

Accordingly, in the operation control of the electric heating apparatus having the above configuration, as shown in FIG. 9, the user inputs the heating set temperature through the controller 50 (S1);

Then, the controller 50 detects the panel temperature of the heating panel 10 and the heating water temperature of the heating water inside the heating tank 21 from the panel temperature sensor 41 and the heating water temperature sensor 42 (S2).

Subsequently, the controller 50 controls the circulation pump 23 and the electric heater 22 by comparing the set temperature with the panel temperature through its own program.

That is, it compares and judges whether or not the set temperature is equal to or greater than the panel temperature (S3-1) and stops and controls the circulation pump 23 and the electric heater 22 only when the set temperature is equal to or less than the panel temperature. (S3-2)

In addition, the controller 50 again controls the circulation pump 23 and the electric heater 22 by comparing the heating water temperature with the panel temperature when the set temperature is higher than the panel temperature.

At this time, when the set temperature is higher than the panel temperature, it is again determined whether the heating water temperature is higher than the panel temperature. (S4-1) When the heating water temperature is lower than the panel temperature, the circulation pump 23 stops and controls the electric heater. 22 controls operation. (S4-2)

Subsequently, when the heating water temperature is higher than the panel temperature, the controller 50 again controls the circulation pump 23 and the electric heater 22 by comparing the heating water temperature with the set temperature.

That is, when the heating water temperature is higher than the panel temperature, it is again determined whether the heating water temperature is higher than the set temperature. (S5-1)

At this time, when the heating water temperature is higher than the set temperature, the circulation pump 23 operates and the electric heater 22 stops control. (S5-2)

On the other hand, when the heating water temperature is lower than the set temperature, both the circulation pump 23 and the electric heater 22 are controlled to operate. (S5-3)

Therefore, according to the electric heating apparatus and the control method according to the present embodiment, the heating unit 10 for supplying the heating panel 10 and the heated heating water to the floor (F) of the room for heating by modularizing the compact It can be installed as, so that the heat source is located on the floor (F) of the room for heating as it is to increase the energy efficiency.

In addition, the supply of heating water can be partially limited, enabling efficient heating.

Above all, the heating unit 20 for supplying the heating water is miniaturized in a simple structure, and the installation cost is low by modularly installing the heating unit 10 together with the heating panel 10 in the room for heating.

As described above, the present invention has been described through limited embodiments and drawings, but the present invention is not limited thereto, and the present invention has been described below by the person skilled in the art to which the present invention pertains. Various modifications and variations are possible within the scope of the claims.

10: heating panel 20: heating unit
30: reservoir tank 40: sensor unit
50: controller L: flow path
11: lower panel 12: upper panel
F: Bottom surface CL1, CL2: Connector
CP1, CP2: Connector SR: Sealing
13: valve mounting hole 14: switching valve
15: valve body L1: first switching flow path
L2: Second Conversion Euro 16: Inspection Panel
21: heating tank 22: electric heater
23: circulation pump 24: heating cover
25: drain cock 26: heater cover
27: pump cover HC: heating chamber
3: pump motor 4: pump housing
5: suction end 6: outlet
31: Supplemental pipe 32: Color ball
33: water level level gauge 34: upper cap
35: air hole 41: panel temperature sensor
42: heating water temperature sensor

Claims (14)

A zigzag flow path is formed in an intaglio on an upper surface thereof, and one side is formed of a lower panel in which an inlet and an outlet are formed adjacent to each other in a state adjacent to the flow path and an upper panel which is sealed by sealing the flow path on an upper surface of the lower panel. A heating panel installed on the bottom surface of the room for heating;
A heating tank mounted on one side of the heating panel and connected to the inlet and the outlet is installed on the bottom surface together with the heating panel, and a circulation pump for circulating the electric heater for heating the heating water and the heating water inside the heating tank. Heating unit is configured;
A reservoir tank connected to a supplement pipe to supply supplement water to the heating tank and installed at one side of the room;
A sensor unit installed on one side of the heating panel and configured to include a panel temperature sensor detecting a panel temperature and a heating water temperature sensor installed on a side of the heating tank to detect a heating water temperature inside the heating tank; And
And a controller for controlling the operation of the electric heater and the circulation pump according to the detection signal of the sensor unit. delete The method of claim 1,
The heating unit
An inlet end and an outlet end connected to the inlet and the outlet of the heating panel, respectively, on both sides of the front surface, and one side of the rear side is connected to the supplement pipe of the reservoir tank, and a heating tank formed therein;
An electric heater installed through one side of the heating tank and disposed in the heating chamber to heat the heating water inside the heating chamber according to a control signal of the controller;
A circulation pump installed through the other side of the heating tank to circulate the heating water in the flow path of the heating panel according to the control signal of the controller and connected to the outlet end in the heating chamber;
A heating cover installed at an upper portion of the heating tank to seal the heating chamber and at one side of which a drain cock is installed;
A heater cover installed at one side of the heating tank; And
Electric heating device including a pump cover installed on the other side of the heating tank. The method of claim 3,
The circulation pump
A pump motor driven and controlled according to the control signal of the controller; And
And a pump housing configured to be integrally formed with the pump motor and having a discharge port exposed to the heating chamber and a bent tubular suction end fitted into the outlet of the heating tank. delete delete Consists of a lower panel having a flow path forming inlet and outlet on one side and an upper panel joined to the lower panel to seal the flow path and installed on the floor surface of the room for heating and branching from one side of each flow path. At least two heating panels interconnected via connectors;
Flow path switching means configured on one side of the connector on the one heating panel to connect the flow paths of the neighboring heating panels;
A heating tank mounted on one side of the heating panel and connected to the inlet and the outlet through the inlet and the outlet is installed on the bottom surface together with the heating panel, and the heating tank is configured to heat heating water inside the heating tank. A heating unit including a circulation pump configured to circulate the heater and the heating water;
A reservoir tank connected to a supplement pipe to supply supplement water to the heating tank and installed at one side of the room;
A sensor unit for detecting a panel temperature of the one heating panel and a heating water temperature in the heating tank and outputting a signal thereof; And
And a controller for controlling the operation of the electric heater and the circulation pump according to the detection signal of the sensor unit. The method of claim 7, wherein
The connector
An electric heating device installed between the one heating panel and each connector of the other heating panel adjacent to each other is fitted with sealing seals on both sides. The method of claim 7, wherein
The flow path switching means
A valve installation hole formed in a circular shape on one side of a connector branched between the lower panel of the one heating panel and the lower panel of the other heating panel adjacent thereto;
A switching valve installed in the valve installation hole via a sealing ring up and down, and having two switching paths different in the vertical direction;
And an inspection panel installed on an upper surface of a lower panel around the valve installation hole and sealingly supporting an upper portion of the switching valve. 10. The method of claim 9,
The switching valve is
A cylindrical valve body;
Upper and lower insertion ends formed at centers of upper and lower surfaces of the valve body and inserted into insertion holes of the check panel and the lower panel, respectively;
A first conversion flow path having an “a” shape formed at an inner upper portion of the valve body; And
An electric heating device including a second switching flow path of the "-" shape formed on the inner lower portion of the valve body. The method of claim 7, wherein
The heating unit
An inlet end and an outlet end connected to the inlet and the outlet of the heating panel, respectively, on one side of the front side, and one side of the rear side is connected to the supplement pipe of the reservoir tank, and a heating tank formed therein;
An electric heater installed through one side of the heating tank and disposed in the heating chamber to heat the heating water inside the heating chamber according to a control signal of the controller;
A circulation pump installed through the other side of the heating tank to circulate the heating water in the flow path of the heating panel according to the control signal of the controller and connected to the outlet end in the heating chamber;
A heating cover installed at an upper portion of the heating tank to seal the heating chamber and at one side of which a drain cock is installed;
A heater cover installed at one side of the heating tank; And
Electric heating device including a pump cover installed on the other side of the heating tank. The method of claim 11,
The circulation pump
A pump motor driven and controlled according to the control signal of the controller; And
And a pump housing configured to be integrally formed with the pump motor and having a discharge port exposed to the heating chamber and a bent tubular suction end fitted into the outlet of the heating tank. The method of claim 7, wherein
The sensor unit
A panel temperature sensor installed at one side of the heating panel; And
The heating device is installed on the other side of the heating tank consisting of a heating water temperature sensor disposed inside the heating tank. In the control method of the electric heating device,
A first step of inputting a heating preset temperature through a controller;
A second step of detecting a panel temperature of the heating panel and a heating water temperature of heating water in a heating tank from a panel temperature sensor and a heating water temperature sensor;
A third step of controlling the circulation pump and the electric heater when the set temperature is less than the panel temperature by comparing the set temperature with the panel temperature;
In the third step, when the set temperature is equal to or higher than the panel temperature, when the heating water temperature is lower than the panel temperature by comparing the heating water temperature with the panel temperature, the circulating pump is stopped, and the electric heater is controlled to operate. step;
In the fourth step, when the heating water temperature is above the panel temperature, when the heating water temperature is above the set temperature by comparing the heating water temperature with the set temperature, the circulation pump is operated, the electric heater is stopped and controlled, And a fifth step of operating and controlling the circulation pump and the electric heater when the heating water temperature is lower than the set temperature.

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