JPH06147505A - Floor heating controller - Google Patents

Abstract

PURPOSE:To effectively use as a substitute for a conventional remote controller by providing characteristics varying means for varying electric signal characteristics for a temperature difference in a signal generator in a controller for controlling a supply warm water quantity according to an electric signal to be outputted in response to a temperature deviation. CONSTITUTION:A floor heater supplies warm water generated from a warm water heat exchanger 4 having a gas burner 3 of a heat source apparatus A to floor heating panels 7A-7C of respective rooms through a forward header 18 and warm water control valves 6A-6C, and then circulates it to the exchanger 4 through a return header 19. The valves 6 are controlled by remote controllers 9 (9A-9C) aligned on the panels 7A-7C through a valve controller 10. Each controller 9 generates an electric signal responsive to a deviation of a set temperature from a temperature detected by a room temperature sensor. In this case, characteristic varying means are respectively added to the controllers 9 to obtain stepwise electric signal characteristics similar to variations in a conventional remote controller.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a floor heating controller for circulating hot water to a plurality of heating panels.

[0002]

2. Description of the Related Art Conventionally, as a floor heating apparatus in which a plurality of heating panels for circulating hot water are arranged, for example, a gas source valve 1 and a proportional valve 2 are connected as a heat source unit A as shown in FIG. A hot water heat exchanger 4 provided with a gas burner 3 and a hot water pipe 5 led out from the hot water heat exchanger 4 are provided with a plurality of hot water control valves 6A, 6B, 6C (three in the figure) in a branch arrangement. Floor heating panels 7A, 7B, 7C arranged in a predetermined room are connected to the hot water control valves 6A, 6B, 6C,
The hot water pipes 5 exiting the floor heating panels 7A, 7B, 7C are merged on the heat source machine side to form a hot water circulation path connected to the hot water heat exchanger 4 via the circulation pump 8, and the remote control 9A for each room, 9B and 9C are connected to a valve control device 10 for controlling the hot water control valves 6A, 6B and 6C, and a main body side control device 11 is connected to the valve control device 10 so that the main valve is connected to the main valve. 1, a proportional valve 2, a circulation pump 8, and a hot water heat exchanger outlet hot water temperature sensor 12 are connected. As this floor heating controller, as shown in FIG. 5, the remote controller 9 is used to check the temperature difference between the room temperature sensor 13 and the set temperature device 14, and T / T is calculated according to this temperature difference.
The V signal generator 15 generates a stepwise voltage signal V shown in FIG. 6, and this V signal is used as the hot water temperature and valve control device 16.
The level discriminating unit 17 discriminates the level, supplies a Hi or Lo signal to the main body side control device 11 on the basis of the set temperature, and opens the hot water control valve 6 when the room temperature rises higher than the set temperature. Alternatively, the conventional valve control is only switching between open and closed as shown in FIG.

[0003]

However, although there are a plurality of remote controllers to control a plurality of rooms at the same time, the temperature of the heat sources can be controlled unless there is a signal that all the rooms have risen to the set temperature because there is only one heat source. I can't lower it. That is, all the voltages are L because the voltage is being observed by the level determination unit 17.
o If there is no signal, the hot water temperature will not be adjusted
If there is a signal, the hot water temperature will not be adjusted. Therefore, precise room temperature control in each room could not be expected. Therefore, recently, a remote control generates a voltage signal that changes linearly with respect to the temperature difference between the room temperature and the set temperature (see the solid line in FIG. 3), and controls the hot water control valve according to this voltage signal (see FIG. 4). Therefore, it has been proposed that the amount of hot water supplied to the floor heating panel can be adjusted for each room.
However, in the case of adopting the method in which the output voltage of the remote controller changes linearly with a slope in this way, for example, when using a conventional remote controller (a model in which the voltage signals Hi and Lo change in steps), the remote controller fails. At that time, it was impossible to substitute a new model remote controller (a model in which the voltage signals Hi and Lo change in inclination). That is, since the level discriminating unit 17 discriminates the level with an intermediate threshold value, there is a problem that when the remote control having the voltage characteristic shown by the solid line in FIG.

In view of the above situation, the present invention provides a remote control signal generating section with a temperature sensor such as a room temperature sensor, a temperature setting device, and a characteristic changing means, to change the output of the remote control by changing its inclination or step. It is an object of the present invention to provide a floor heating controller that can solve the above problems.

[0005]

According to the present invention, there is provided a temperature sensor, a signal generator for generating an electric signal according to a temperature difference between a temperature detected by the temperature sensor and a set temperature, and the signal generator. In a floor heating controller having a hot water amount control unit for controlling the amount of hot water supplied from the heat source to the floor heating panel in accordance with the electric signal of, the signal generation unit has a variable characteristic for changing the electric signal characteristic with respect to the temperature difference. Means are provided.

[0006]

As described above, by providing the characteristic changing means for changing the characteristic of the electric signal V with respect to the temperature difference ΔT in the signal generating section on the remote controller side, and appropriately changing the value of V / ΔT, the valve can be changed. It is possible to control the supply of hot water to the floor heating panel to an appropriate amount by issuing a duty signal from the hot water amount control unit on the control device side to the hot water control valve. Further, by making the change of V / ΔT extremely large (by changing the voltage signal to be the remote control output in steps), the function of the old remote controller can be added to the current remote controller.

[0007]

The present invention will be described below with reference to the drawings of the embodiments.

FIG. 1 shows a floor heating system in which three remote controllers are provided. On the heat source unit A side, a hot water heat exchanger 4 having a gas burner 3 connecting a gas source valve 1 and a proportional valve 2 is provided. , The forward header 1 of the hot water pipe 5 derived from the hot water heat exchanger 4
The circulation pump 8 provided with the hot water control valves 6A, 6B, 6C branched and connected via 8 and connected to the return header 19 side is connected to return to the hot water heat exchanger. There is a circulation between the forward header 18 and the return header 19 in which the floor heating panel 7A for each room is connected to the hot water control valve 6A, the floor heating panel 7B is connected to the hot water control valve 6B, and the floor heating panel 7C is connected to the hot water control valve 6C. Make up the circuit. Reference numerals 9A, 9B and 9C are remote controllers installed in the floor heating panels 7A, 7B and 7C, and the remote controllers 9A, 9B and 9C are connected to the hot water control valves 6A, 6B,
The floor heating controller 20 shown in FIG. 2 is configured by communicating with the valve control device 10 that controls 6C. 11 is a valve control device 10
In the main body side control device, the main body side control device 11 is connected with the hot water temperature sensor 12 provided at the outlet of the hot water heat exchanger, the circulation pump 8, the main valve 1 and the proportional valve 2, and the whole of them is connected to the floor. It becomes a heating system.

Explaining this action, first, the hot water heat-exchanged by the combustion heating of the hot water heat exchanger 4 is passed through the hot water pipes 5 through the hot water control valves 6A, 6B and 6C, and the floor heating panel 7A,
7B and 7C, and a circulation flow path returning from the circulation pump 8 to the hot water heat exchanger 4 is taken.

Here, floor heating panels 7A, 7B,
When hot water is poured to 7C to perform floor heating, a predetermined remote controller 9 (for example, remote controller 9A) is operated to determine the set temperature by the temperature setter 14. In controlling the opening / closing of the hot water control valve 6A, the signal generator 15 generates an electric signal by converting the temperature difference into a voltage by checking the temperature difference between the temperature of the room temperature sensor 13 and the set temperature in the remote controller 9A. The A / D timer of the hot water amount control unit 21 is input to the valve control device 10 and the duty signal is guided to the hot water control valve 6A.

In this case, the valve control of the hot water control valve 6A is performed with an opening / closing ratio according to the temperature difference, for example, 20 minutes as a unit and 5 minutes as an opening valve (for example, ON time is 20 % To 100%). Here, when the room temperature is low, that is, when the room temperature is lower than the set temperature, such as when heating is started, the hot water control valve 6A is set to have a valve opening rate of 100% to flow hot water to warm the floor heating panel 7A. After this, when the room temperature gradually approaches the set temperature, the valve opening time is shortened.
In addition, when the room temperature exceeds the set temperature, the valve opening rate is the minimum of 20%.
And

Now, referring to the block diagram of FIG. 2, the remote controller 9A includes a room temperature sensor 13 and a temperature setter 1.
4, the characteristic variable means 22 including a volume, a switch, etc. is provided, and the voltage signal of the signal generator (T / V) 15 of the remote controller 9A linearly decreases as the room temperature approaches the set temperature. Figure 3 shows the temperature and voltage characteristics at this time.
It becomes as shown by the solid line. At the beginning of heating, the remote control output is maximum, and in this state the valve opening is 100%. After that, when entering the area within 2 deg from the set temperature, the voltage of the remote control output linearly decreases (inclined solid line). Along with this, the ON time for opening the valve is shortened, the amount of hot water supply is suppressed, the amount of heat radiation is reduced, and the room temperature is stabilized near the set temperature. Even with this, when the room temperature is further raised, the valve may be closed (remote control output 0).

In this case, if the characteristic varying means 22 is adjusted in advance, the slope of the electric signal characteristic of temperature difference and voltage conversion gradually rises with reference to the set temperature (see the chain line in the figure).
When it reaches the maximum value (the slope approaches infinity), the characteristic changes to a straight line (see the dashed line in Fig. 1). This results in a substantially stepped electrical signal characteristic that is similar to changes in older remote controls. If the new remote controller 9 provided with the characteristic changing means 22 is used, the voltage signal H of the old remote controller is changed by changing the voltage characteristic of temperature by the variable adjustment.
This is equivalent to the type in which i and Lo are changed in a stepwise manner, and alternative use is possible.

That is, the remote controller 9 of this controller is V
By making / ΔT variable, it is possible to select room temperature control suitable for the floor warming installation condition and the like, and by making V / ΔT extremely large, it can be used for either the current controller or the conventional controller. If the output voltage lower limit value is set to 0, the Hi-Lo-OFF signal is output, and the output voltage lower limit value is set to L.
When set to o, a Hi-Lo signal can be generated.

[0015]

As described above, in the floor heating controller of the present invention, the configuration of the remote controller attached to the floor heating panel is combined with the temperature sensor such as the room temperature sensor and the temperature setting device and the characteristic varying means to cope with the temperature difference. The electric signal characteristics can be changed, and it has an effect that it can be provided as a substitute for the conventional type remote controller as well as adjusting the opening / closing time of the hot water control valve.

[Brief description of drawings]

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

FIG. 2 is a block diagram of the floor heating controller.

FIG. 3 is a characteristic diagram of the same room temperature and voltage.

FIG. 4 is an explanatory diagram of the valve opening / closing ratio.

FIG. 5 is a block diagram of a floor heating controller of a conventional floor heating device.

FIG. 6 is a characteristic diagram of room temperature and voltage.

FIG. 7 is an explanatory diagram of the valve opening / closing ratio.

[Explanation of symbols]

 6 hot water control valve 7 floor heating panel 9 remote control 10 valve control device 13 room temperature sensor 14 room temperature setting device 20 floor heating controller 21 hot water control unit 22 characteristic varying means

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Hirokazu Izaki 2-18 Keihan Hondori, Moriguchi City, Osaka Prefecture Sanyo Electric Co., Ltd. (72) Shinichi Kasahara 2-18-18 Keihan Hondori, Moriguchi City, Osaka Sanyo Electric Co., Ltd.

Claims (1)

[Claims] 1. A signal generator having a temperature sensor for generating an electric signal in accordance with a temperature difference between a detected temperature of the temperature sensor and a set temperature, and a heat source in response to the electric signal from the signal generator. In a floor heating controller having a hot water amount control unit for controlling the amount of hot water supplied to the floor heating panel,
The floor heating controller, wherein the signal generating unit is provided with a characteristic changing unit that changes an electric signal characteristic with respect to the temperature difference.