JPH06235530A - Floor heating device - Google Patents

Abstract

PURPOSE:To realize comfortable floor heating by a method wherein an on-off valve is controlled by comparing temperature signals from a room temperature sensor and a floor temperature sensor with a set signal from a temperature setting means. CONSTITUTION:A floor heating device is formed such that a heating medium heated by a heat source machine 1 is circulated through a floor heating panel 5 through an on-off valve 6 to heat the interior of a room. In the floor heating device, a control means 12 is provided with a room temperature sensor 9, a floor temperature sensor 11, and a temperature setting means 8 and operated to control the on-off valve 6 through comparison of compare temperature signals from the room temperature sensor 9 and the floor temperature sensor 11 with a set signal from the temperature setting means 8 to control the on-off valve 6.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a floor heating system for heating a room by circulating a heat medium heated by a heat source unit through a floor heating panel through an opening / closing valve.

[0002]

2. Description of the Related Art The above-described floor heating apparatus has a temperature sensor for room temperature or floor temperature and temperature setting means, and compares the temperature signal of the temperature sensor with the setting signal of the temperature setting means to open and close the on-off valve. Those that control are known.

As the first control of the on-off valve, a temperature sensor (room temperature sensor) for detecting room temperature is provided in the room, and the on-off valve is controlled by comparing the temperature signal of the temperature sensor with the temperature set by the user. There is something to do.

As the second control of the on-off valve, a temperature sensor (floor temperature sensor) for detecting the water temperature in the floor or the floor heating device is provided, and the temperature signal of the temperature sensor and the temperature setting means by the user are provided. In some cases, the on-off valve is controlled in comparison and the on-off valve is closed when the temperature detected by the temperature sensor reaches a set temperature.

[0005]

Generally, it is said that the average temperature of the room temperature and the floor temperature (radiation temperature) is a temperature close to the sensible temperature, and based on this, when the room temperature is high, the floor temperature is high. It can be said that it is comfortable to raise the floor temperature when the room temperature is low. However, in the case of the floor heating device including a plurality of radiators, it is difficult to adjust the water temperature by the heat source, and it is necessary to adjust the temperature by changing the amount of water on each radiator side.

In the above-described first control, there is a large difference between the temperature actually felt by the user through the floor material placed on the floor heating device and the temperature detected by the room temperature sensor or the like provided in the room. However, there is a problem that the user feels uncomfortable because the floor temperature fluctuates greatly.

In the second control, the bed temperature is preferably maintained at a high temperature at the start-up and at a slightly lower temperature as the room temperature stabilizes, whereas the bed temperature is kept constant at the start-up and at the stable time. Therefore, there is a problem that the user does not feel comfortable.

The present invention has been made in view of the above-mentioned fact, and uses the temperature signals of the room temperature sensor and the floor temperature sensor to control the on-off valve by comparing with the setting signal of the temperature setting means. When the room temperature is high, the floor temperature is low, and when the room temperature is low, the floor temperature can be increased so that the floor heating is comfortable.

[0009]

According to the present invention, in a floor heating system for heating a room by circulating a heat medium heated by a heat source device to a floor heating panel through an opening / closing valve, a room temperature sensor and a floor temperature sensor are provided. The temperature control means has a temperature setting means, and the control means controls the on-off valve by comparing the temperature signals of the room temperature sensor and the floor temperature sensor with the setting signals of the temperature setting means.

[0010]

Since the control means for controlling the on-off valve by comparing the temperature signals of the room temperature sensor and the floor temperature sensor with the setting signal of the temperature setting means is provided, the floor temperature is low and the room temperature is low when the room temperature is high. At this time, the on-off valve can be controlled so that the floor temperature becomes high, and the user can feel comfortable.

[0011]

An embodiment of the present invention will be described below with reference to the drawings. In FIG. 1, 1 is a heat source device main body, 2 is a combustor,
3 is a heat exchanger heated by the combustor 2, 4 is a circulation pump, 5 is a floor heating panel, 6 is an opening / closing valve, and the heat exchanger 3, the circulation pump 4, the floor heating panel 5 and the opening / closing valve 6 are hot water. The pipes 7 are sequentially connected. Reference numeral 8 is a remote control device installed indoors, and the remote control device 8 is provided with a room temperature sensor 9 and a temperature setting device (temperature setting means) 10. 11 is a floor temperature sensor, 12 is a room temperature sensor 9
And a control device (control means) for controlling the on-off valve 6 by comparing the temperature signal of the floor temperature sensor 11 with the setting signal of the temperature setting device 10.

FIG. 2 shows a specific circuit example of the control device 12. In FIG. 2, a room temperature sensor 9 composed of a negative characteristic thermistor, a floor temperature sensor 11 also composed of a negative characteristic thermistor, and a temperature setting device 10 composed of a variable resistor, and a series circuit of resistors 13 and 14. Circuit and comparator 15
Are provided between the busbars 16 and 17, respectively.

Assuming that the space between the floor temperature sensor 11 and the temperature setting device 8 is X and the space between the resistor 13 and the pit 14 is S, the comparator 15 is connected to X and S, and Comparator 1
A resistor 1 is provided between the output terminal of the transistor 5 and the base of the transistor 18.
9 is connected, and a resistor 20 is connected between the base of the transistor 18 and the resistor 19 and between the bus bar 17. A relay 20 is connected between the collector of the transistor 18 and the bus bar 16, and an emitter of the transistor 18 is connected to the bus bar 17. Reference numeral 21 is a DC power supply circuit for converting an AC power supply voltage into a DC low voltage, and 22 is a relay contact of the relay 20, which is connected in series with the on-off valve 6.

Next, the basic operation of the hot water control by the control device 12 will be described with reference to the flow chart shown in FIG. 3 and the characteristic explanatory view shown in FIG. The voltage (Vx) determined by the combined resistance value of the room temperature sensor 9 and the floor temperature sensor 11 connected in series and the resistance value by the temperature setter 8 and the reference voltage (Vs) determined by the resistors 13 and 14 are compared by the comparator 15. Is input to and is compared by the comparator 15. Comparator 1
When Vs> Vx, the relay 5 is energized to open and close the on-off valve 6
Is opened. When Vs <Vx, the relay 20 is de-energized and the on-off valve 6 is closed. This is repeated to adjust the bed temperature so that Vs = Vx.

When the room temperature is low, as in the beginning of heating, the resistance of the room temperature sensor 9 is large, so that the floor temperature sensor 11
The on-off valve 6 is closed with a small resistance (high bed temperature). Since the resistance of the room temperature sensor 9 decreases as the room temperature rises, the opening / closing of the opening / closing valve 6 is corrected to the larger resistance (lower bed temperature) side of the floor temperature sensor 11. This correction amount is small when the floor temperature setting is low, and is large when the floor temperature setting is high (see FIG. 4). According to the present embodiment, these characteristics are obtained only by connecting the room temperature sensor 9 and the floor temperature sensor 11 in series. Therefore, the user can feel comfort at an extremely low cost, and since the temperature of the hot water circulating through the floor heating panel 5 is automatically controlled by the room temperature, the user has to perform a troublesome operation. Instead, the room and floor temperatures are controlled to a comfortable temperature.

[0016]

The present invention controls the on-off valve by comparing the temperature signals of the room temperature sensor and the floor temperature sensor with the setting signal of the temperature setting means, thereby lowering the floor temperature when the room temperature is high, When the room temperature is low, the floor temperature can be raised and comfortable floor heating can be performed.

[Brief description of drawings]

FIG. 1 is a schematic configuration diagram of a floor heating system showing an embodiment of the present invention.

FIG. 2 is likewise an electric circuit diagram showing a control circuit.

FIG. 3 is likewise a flowchart for explaining the operation of the control circuit.
It is

FIG. 4 is a characteristic explanatory diagram similarly showing a floor temperature control characteristic of a control circuit.

[Explanation of symbols]

 1 Heat Source Machine Main Body 5 Floor Heating Panel 6 Open / Close Valve 8 Room Temperature Setting Device (Room Temperature Setting Means) 9 Room Temperature Sensor 11 Floor Temperature Sensor 12 Control Device (Control Means)

Claims (1)

[Claims] 1. A floor heating device for heating a room by circulating a heat medium heated by a heat source device to a floor heating panel through an opening / closing valve, and having a room temperature sensor, a floor temperature sensor and a temperature setting means, A floor heating device comprising control means for controlling the on-off valve by comparing the temperature signals of the room temperature sensor and the floor temperature sensor with the setting signal of the temperature setting means.