JP2004003683A - Hot water type floor heating device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a hot water type floor heating device for performing adequate starting operation according to the room temperature and water temperature at starting operation. <P>SOLUTION: The hot water type floor heating device 1 comprises a floor heating panel 3 and a heat source 2 connected to the floor heating panel 3 via a hot water pipe for supplying hot water thereto via an on-off valve 8. It performs normal heating operation with the periodic opening/closing of the on-off valve 8. A controller 13 controls starting operation to be performed with the continuous opening of the on-off valve 8 at starting the operation and an operating time to be determined in accordance with a temperature difference between room temperature and a set temperature. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a hot-water floor heating device that circulates and supplies hot water to a floor heating panel.
[0002]
[Prior art]
Conventionally, for example, a heat source unit installed outdoors and a floor heating panel laid indoors are connected by a hot water pipe, and the hot water generated by heating the heat source unit is circulated and supplied to the floor heating panel through the hot water pipe. 2. Description of the Related Art A hot-water floor heating device (hereinafter simply referred to as a floor heating device) for heating to a desired temperature is known.
[0003]
This type of floor heating device is provided with an open / close valve in a hot water pipe, and by periodically opening and closing the open / close valve, adjusts the amount of hot water supplied to the floor heating panel, and maintains a stable set temperature with little room temperature fluctuation. Is controlled as follows.
[0004]
At the start of the operation of the floor heating device, it takes time to warm up the water, since all the water held inside the hot water pipe, the floor heating panel, and the heat source device is cooled. For this reason, the time until the room temperature reaches the set temperature (rise time) becomes longer, and discomfort due to difficulty in warming up may be felt.
[0005]
Therefore, at the start of the operation, there is a model that performs a start-up operation in which the heating capacity is increased over the normal operation and the operation is performed for a fixed time (a preset time). This shortens the rise time and reduces discomfort at the start of operation.
[0006]
[Problems to be solved by the invention]
However, in the start-up operation, the temperature difference between the room temperature and the set temperature differs depending on the room temperature at the start of the operation. When the temperature difference is large, the start-up operation is insufficient, and when the temperature difference is small, the start-up operation is excessive. Therefore, it is necessary to adjust the heating capacity at the start of the operation.
[0007]
Further, since the rising operation is set on the assumption that the water in the floor heating device is cooled, the stop time (leaving time) from the stop of the previous operation to the start of the current operation is short. In some cases, the temperature of the water is too warm, which can be overheated and waste energy.
[0008]
The present invention has been made in view of the above-described conventional circumstances, and an object of the present invention is to provide a hot-water floor heating device that performs an appropriate start-up operation according to a room temperature and a water temperature at the start of operation.
[0009]
[Means for Solving the Problems]
In order to achieve the above object, the invention according to claim 1 includes a floor heating panel, and a heat source unit that connects the floor heating panel with a hot water pipe and supplies hot water through an opening / closing valve. In a hot-water floor heating device that periodically opens and closes to perform a normal heating operation, a start-up operation in which the on-off valve is continuously opened at the start of operation, and a start-up operation according to a temperature difference between room temperature and a set temperature. A control device for determining time is provided.
[0010]
The invention according to claim 2 is provided with a floor heating panel, and a heat source unit that connects the floor heating panel with a hot water pipe and supplies hot water through an opening / closing valve, and periodically opens and closes the opening / closing valve to perform normal operation. In a hot-water floor heating device that performs a heating operation, while performing a start-up operation in which the on-off valve is continuously opened at the time of starting operation, a plurality of operation modes in which the on-off ratio per one cycle of the on-off valve is changed to operate is performed. A control device for setting a predetermined time of the start-up operation for each of these operation modes, and controlling to determine the start-up operation time from each of the predetermined time and the temperature difference between the room temperature and the set temperature. Features.
[0011]
The invention according to claim 3 includes a floor heating panel, and a heat source unit that connects the floor heating panel with a hot water pipe and supplies hot water through an opening / closing valve, and periodically opens and closes the opening / closing valve to perform normal operation. In a hot-water floor heating device that performs a heating operation, while performing a start-up operation in which the on-off valve is continuously opened at the time of starting operation, a plurality of operation modes in which the on-off ratio per one cycle of the on-off valve is changed to operate is performed. A predetermined time of the start-up operation is set for each of these operation modes, and control is performed so as to determine the start-up operation time from the predetermined time, the temperature difference between the room temperature and the set temperature, and the stop time before the start of operation. A control device is provided.
[0012]
According to a fourth aspect of the present invention, in the hot water floor heating device according to any one of the first to third aspects, the rising operation is performed by operating an operation switch that starts operation of the hot water floor heating device. It is characterized by the following.
[0013]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a schematic explanatory view of a floor heating device according to an embodiment of the present invention, FIG. 2 is a front view of a remote controller for operating the floor heating device, and FIG. 3 is a block diagram showing a schematic configuration of a control device.
[0014]
In FIG. 1, a floor heating device 1 of the present invention includes a heat source unit 2 installed outdoors, a floor heating panel 3 laid indoors and a remote control R, and a gas combustion unit 4 is provided below the heat source unit 2. And a pipe-shaped heat exchanger 6 wound around the outer periphery of the combustion device 5. The heat exchanger 6 is connected to the floor heating panel 3 by a water distribution pipe 7. . An on-off valve 8 composed of an electromagnetic valve and a circulation pump P are provided in the middle of the hot water pipe 7, and the on-off valve 8 and the circulation pump P, the room temperature sensor 9, the gas valve 12 of the gas combustion unit 4, and the like are controlled by a control device. 13 and constitutes the floor heating apparatus 1 as a whole. The room temperature sensor 9 detects a room temperature and transmits a temperature signal to the control device 13.
[0015]
In FIG. 2, the remote controller R includes an operation on / off switch 14, a mode changeover switch 15, a room temperature setting switch 16, a timer switch 17 for starting or stopping operation at a set time, and the like. It has a display unit 22 for displaying the set contents (set temperature, mode, timer time), room temperature, and the like on a liquid crystal, and the room temperature sensor 9.
[0016]
When the operation on / off switch 14 is pressed once, the operation of the floor heating device 1 is started, and when the switch 14 is pressed again, the operation is stopped. The mode changeover switch 15 can set the heating capacity to a strong / medium / weak / automatic mode. When set to automatic, the operation is automatically switched to strong / medium / weak operation according to the difference between the room temperature and the set temperature. The room temperature setting switch 16 has an up switch 16a and a down switch 16b, and sets the set temperature displayed on the display unit 22 to a desired room temperature.
[0017]
In FIG. 3, the control device 13 incorporates a ROM for storing a control program, a RAM for storing various data, an A / D converter for performing analog / digital conversion, and an EEPROM or the like as a storage device that can be written at any time. It has a microcomputer (hereinafter referred to as a microcomputer) 23 for controlling the entire machine.
[0018]
The microcomputer 23 stores therein a predetermined time S of the start-up operation performed at the start of the operation, and stores therein a coefficient K1 determined by a temperature difference between the room temperature and the set temperature. Further, the microcomputer 23 has a built-in clock function to monitor the operation history of the floor heating device 1 and record the operation stop time of the previous operation. Then, the stop time (leaving time) of the apparatus 1 is calculated from the recording of the stop time and the time of the next start of operation, and the coefficient K2 determined by the leaving time is set and stored. The predetermined time S is set to a different value for each operation mode.
[0019]
The input side of the microcomputer 23 is connected to a room temperature sensor 9, an operation on / off switch 14 for performing operation / stop, a set temperature switch 15, a timer switch 17 for performing operation / stop at a desired time, and the like. ing.
[0020]
On the other hand, the output side of the microcomputer 23 is connected to the circulation pump P, the gas valve 12, the on-off valve 8, the display unit 22 of the remote controller R, and the like.
[0021]
Next, the operation of this floor heating device during normal operation will be described.
[0022]
In FIG. 1, the hot water heated in the pipe-shaped heat exchanger 3 by the combustion of the combustion device 5 flows into the floor heating panel 5 through the hot water pipe 7 by the operation of the circulation pump P, and warms the floor heating panel 3. At the same time, the room is heated by the radiant heat to raise the room temperature. The opening / closing ratio of the opening / closing valve 8 is periodically set and the opening / closing control is performed so that the heating capacity is adjusted so that the floor temperature does not greatly change.
[0023]
As shown in FIG. 4, for example, the adjustment of the on-off valve 8 is performed in a strong mode by setting one cycle T to 20 minutes and the opening time t1 of the on-off valve 8 to 15 minutes, and setting the opening time t2 to 10 minutes. Thus, the medium mode is set, and the weak mode is set by setting the opening time t3 to 5 minutes. The operation in the strong / medium / weak mode is such that when the room temperature reaches the set temperature, the combustion is stopped and the on-off valve 8 is closed, and when the room temperature falls below the set temperature, the on-off valve 8 is opened to restart the combustion. A cycle operation is performed.
[0024]
FIG. 5 is a table showing the relationship between the temperature difference between the room temperature and the set temperature of the floor heating device, and the rise time. When the temperature difference between the set temperature and room temperature is 0 deg. Is less than 0%, 0 to 2 deg. If less than 110%, 2 to 4 deg. If less than 120%, 4 to 6 deg. If less than 130%, 6 deg. In this case, the rise time is 140%, and the rise time is a value obtained by multiplying a predetermined time S set in advance by a coefficient K1.
[0025]
FIG. 6 is a table showing the relationship between the standing time and the rise time of the floor heating device. The coefficient K2 is 100% when the leaving time is 30 minutes or more, 75% when the leaving time is less than 20 to 30 minutes, 50% when the leaving time is less than 20 to 30 minutes, and 25% when the leaving time is less than 10 minutes. The value is a value obtained by multiplying a predetermined time S set in advance by a coefficient K2.
[0026]
Next, the operation of the floor heating device at the start of operation will be described. 1, 5, and 6, when the operation on / off switch 14 is pressed to start the operation, the control device 13 selects a predetermined rise time S. Next, a temperature difference between the room temperature and the set temperature is calculated, and a coefficient K1 determined by the temperature difference is selected. Further, a time during which the apparatus 1 is stopped (an idle time) is calculated from the stop time of the previous operation, and a coefficient K2 determined by the idle time is selected. The rise time S × K1 × K2 is determined by multiplying the selected coefficients K1 and K2 by the predetermined time S.
[0027]
Here, for example, when the operation is started, the weak mode is set (the predetermined time S for rising is 30 minutes), the temperature difference between the set temperature and the room temperature is 5 ° C., and the leaving time is 25 minutes. %, K2 is 75%, the rise time S × K1 × K2 is 30 × 1.3 × 0.75, which is 29.25 minutes, and the rise operation time is 29 minutes, 15 seconds. Thereby, as shown in FIG. 7, the control device 13 opens the on-off valve 8 for 29 minutes and 15 seconds, and performs a start-up operation in which hot water is forcibly circulated to the floor heating panel 5.
[0028]
As described above, when the operation on / off switch 14 is operated, the floor heating device 1 according to the present embodiment calculates the temperature difference between the room temperature and the set temperature and the leaving time, and calculates the temperature difference and the leaving time. Since the start-up operation time is determined in accordance with the above, it is possible to eliminate a shortage of heating or excessive heating and perform a comfortable start-up operation.
[0029]
The predetermined time at the start-up is set to, for example, 90 minutes in the strong operation mode, 60 minutes in the medium operation mode, 30 minutes in the weak operation mode, and 90 minutes in the automatic operation mode. Is set to a predetermined time. Thus, the start-up operation time is determined for each operation mode, so that the start-up operation corresponding to each operation mode can be performed.
[0030]
As described above, the present invention has been described based on one embodiment, but the present invention is not limited to the above embodiment.
[0031]
【The invention's effect】
As described above, the floor heating device of the present invention calculates the temperature difference between the room temperature and the set temperature at the start of operation, and the standing time, and determines the start-up operation time at the start of operation. And a comfortable floor heating operation can be performed.
[0032]
Further, since the predetermined time of the start-up operation is set for each operation mode, an appropriate start-up operation corresponding to the operation mode can be performed.
[Brief description of the drawings]
FIG. 1 is a schematic diagram of a floor heating device according to an embodiment of the present invention.
FIG. 2 is a front view of a remote controller for operating the floor heating device of FIG. 1;
FIG. 3 is a block diagram illustrating a schematic configuration of a control device of FIG. 1;
FIG. 4 is an operation explanatory diagram showing an open / close state of an on-off valve in each operation mode.
FIG. 5 is a table showing a relationship between a temperature difference between a room temperature and a set temperature and a rise time.
FIG. 6 is a table showing a relationship between a standing time and a rise time.
FIG. 7 is an operation explanatory diagram showing an example of opening and closing of the on-off valve at the start of operation.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Hot-water floor heating device 2 Heat source unit 3 Floor heating panel 5 Combustion device 7 Hot water pipe 8 On-off valve 9 Room temperature sensor 13 Control device 14 Operation on / off switch (operation switch)
S Predetermined time K1 Coefficient determined by temperature difference K2 Coefficient determined by standing time

Claims (4)

A hot-water floor heating system comprising a floor heating panel, and a heat source unit that connects the floor heating panel with a hot water pipe and supplies hot water through an on-off valve, and periodically opens and closes the on-off valve to perform a normal heating operation. In the device,
A hot-water system, comprising: a control device that performs a start-up operation in which the on-off valve is continuously opened at the start of operation, and that controls to determine a start-up operation time according to a temperature difference between room temperature and a set temperature. Floor heating system. A hot-water floor heating system comprising a floor heating panel, and a heat source unit that connects the floor heating panel with a hot water pipe and supplies hot water through an on-off valve, and periodically opens and closes the on-off valve to perform a normal heating operation. In the device,
At the start of operation, the start-up operation for continuously opening the on-off valve is performed, and a plurality of operation modes for operating by changing the opening / closing ratio per one cycle of the on-off valve are provided. A hot-water floor heating device, comprising a control device for setting a predetermined time and controlling to determine a rising operation time from each of the predetermined time and a temperature difference between the room temperature and the set temperature. A hot-water floor heating system comprising a floor heating panel, and a heat source unit that connects the floor heating panel with a hot water pipe and supplies hot water through an on-off valve, and periodically opens and closes the on-off valve to perform a normal heating operation. In the device,
At the start of operation, the start-up operation for continuously opening the on-off valve is performed, and a plurality of operation modes for operating by changing the opening / closing ratio per one cycle of the on-off valve are provided. A hot-water system characterized by providing a control device for setting a predetermined time and controlling the temperature difference between the predetermined time, the room temperature and the set temperature, and the start-up time from the stop time before the start of operation. Floor heating system. The hot-water floor heating device according to any one of claims 1 to 3, wherein the rising operation is performed by operating an operation switch that starts operation of the hot-water floor heating device.

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