JP2001041473A - Floor heating system and method of controlling the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide appropriate heating in accordance with an actual floor temperature in warm-water floor heating. SOLUTION: The floor heating system comprises a sensor 55 for detecting the temperature of warm water in a supply warm-water pipe 52, a sensor 57 for detecting the temperature of warm water in a return warm-water pipe 62, and a controller 11 for controlling a heat source 1 and valves 35 and 57 in response to a signal from each sensor. The controller 11 finds difference in temperature between the temperature (supply temperature TS) of warm water supplied to the warm-water pipe and the temperature (return temperature TB) of warm water returned from the pipe. The controller 11 continuously feeds the warm-water pipe with high-temperature water when TS-TB>=T1 is established, with low-temperature water when T1>TS-TB>=T2 is established and intermittently with low-temperature water when T2>TS-TB is established.

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 from the floor of a building. In particular, the present invention relates to a floor heating control method and a floor heating device that are improved in hot water floor heating so that appropriate heating can be provided according to the actual floor temperature.

[0002]

2. Description of the Related Art In hot water floor heating, hot water of about 60 ° C. or 80 ° C. is sent from a heat source unit to a hot water circulation pipe laid on the floor of each room through an incoming hot water pipe. The hot water circulated in the circulation pipeline returns to the heat source device through the return pipeline. In the floor heating, the heat of the hot water in the pipeline is removed (radiated) to heat the floor, and the temperature of the hot water in the return pipeline is lower than the temperature of the hot water in the outward pipeline.

[0003] Some floor heating systems have a room temperature sensor, while others do not. The one provided with the room temperature sensor controls the hot water circulation ratio (the ratio between the hot water supply time and the stop time within a predetermined time) according to the difference between the detected room temperature and the temperature set by the user. That is, when the room temperature is lower than the set temperature, the hot water is continuously circulated, and when the room temperature is high, the circulation of the hot water is temporarily stopped. Those without a room temperature sensor repeat the fixed hot water circulation rate according to the set temperature regardless of the actual room temperature. There is also floor heating provided with a floor temperature sensor. In this case, the hot water circulation ratio is controlled so that the bed temperature becomes the set temperature.

[0004]

In general floor heating, when used in combination with other room heaters such as an air conditioner,
Room temperature may be high but bed temperature may be low.
In such a state, in the floor heating provided with the room temperature sensor, the room temperature is sufficiently high, so that the circulation of the hot water is controlled to be stopped, thereby causing a disadvantage that the floor temperature does not easily rise. In the case of floor heating without a room temperature sensor, hot water is circulated at a time ratio according to the heating intensity level selected by the user regardless of the room temperature or the like.

On the other hand, in the case of a floor heating system equipped with a floor temperature sensor, accurate floor temperature control is possible because the temperature of the floor is directly measured and controlled according to the temperature. However, since the sensor is buried inside the floor, maintenance is difficult when the sensor fails. Also, when a person sits at the embedded position of the sensor, the temperature detected by the sensor may be higher than at other places, and overall appropriate temperature control may not be performed.

[0006] The present invention has been made in view of such problems, and in a hot water floor heating, a floor heating control method and a floor heating apparatus capable of providing appropriate heating in accordance with the actual floor temperature. The purpose is to provide.

[0007]

In order to solve the above problems, a floor heating control method according to a first aspect of the present invention supplies heat into a building by circulating hot water through a hot water pipe laid on the floor of the building. A temperature difference between the temperature of the hot water supplied to the hot water pipe (outgoing temperature T _S ) and the temperature of the hot water returning from the pipe (return temperature T _B ). According to the temperature difference, the temperature of the hot water to be supplied and / or the time (intermittent time) for turning on / off the hot water supply is controlled. When the temperature difference between the forward temperature and the return temperature is large, the amount of heat dissipated is large, and it is estimated that the bed temperature is low. In this case, the bed temperature is controlled by increasing the temperature of the supplied hot water or increasing the supply time. When the temperature difference is small, it is estimated that the bed temperature is considerably high, and the temperature of the hot water is lowered or the supply time is reduced.

In this embodiment, T _S -T _B ≧ T ₁
In the case of, high-temperature water is continuously flowed through the hot water pipe, and T ₁ > T
_{When S−} T _B ≧ T ₂ , low-temperature water can be continuously flown into the hot water pipeline, and when T ₂ > T _S −T _B , low-temperature water can be intermittently flowed into the hot water pipeline. If the temperature difference is equal to or greater than the first predetermined value, the temperature is divided into three cases: a case where the temperature is less than the first predetermined value but less than or equal to the second predetermined value, and a case where the temperature difference is less than the second predetermined value. I do. According to the estimated bed temperature, high-temperature water is continuously supplied, low-temperature water is continuously supplied, and low-temperature water is supplied intermittently, and the bed temperature is maintained at a desired temperature. By performing such control, finer bed temperature control can be performed.

When T _S −T _B ≧ T ₁ , the hot water is continuously supplied to the hot water pipeline, and when T ₁ > T _S −T _B , the hot water is supplied intermittently to the hot water pipeline. Is also good. The bed temperature is estimated to be low and high in two cases, the case where the temperature difference is equal to or more than the first predetermined value and the case where the temperature difference is less than the first predetermined value. Warm water is continuously supplied to the low-temperature room, and hot water is intermittently supplied to the high-temperature room, and the floor temperature is set to a desired temperature. In this embodiment, there is no need to change the temperature of the hot water, and control is facilitated by setting the room temperature to two levels.

The temperature T of the room to be heated by the floor_R
Is detected, and T_S-T_B≧ T_ThreeIn the case of
Depending on the temperature of the hot water supplied and / or the hot water supply
ON-OFF time (intermittent time) is controlled._Three>
T_S-T_BAt room temperature T _RAnd user set temperature T_C
And / or the temperature of the hot water supplied, and / or
Control the time (intermittent time) for turning on and off the water supply
It may be that. When the temperature difference is below the specified value and the bed temperature is high
If estimated, consider the difference between the actual room temperature and the set temperature
The floor temperature and room temperature to a comfortable temperature range.
Can be controlled.

In this embodiment, T _S -T _B
≧ when the T ₄ flowed continuously hot pipe hot water, T
_4> when T _S -T _B, may be supplied intermittently to the hot water pipe and cold water according to the difference between the set temperature T _C of the user and the room temperature T _R. If the temperature difference is equal to or more than a predetermined value, the bed temperature is estimated to be low, and if it is less than the predetermined value, the bed temperature is estimated to be high. When the floor temperature is high, the floor temperature and the room temperature can both be controlled to a comfortable temperature range by intermittently supplying low-temperature water according to the difference between the actual room temperature and the set temperature, No excess energy is consumed.

In these embodiments, it is preferable that the control is started after the circulation time of the warm water has elapsed after the circulation of the warm water has started. When the temperature difference is measured immediately after the start of the operation, the return temperature is a low value before hot water is supplied, and the temperature difference does not correspond to the amount of heat released. Accordingly, stable temperature control can be performed by starting the control after the operation is started and the time when the hot water circulates in the floor heating has elapsed.

Further, in detecting the temperature difference, the hot water forward temperature T _S of the time there may be a subtracting the hot water return temperature T _B of after hot water circulation time from that time. By measuring the return temperature when the warm water whose outgoing temperature has been measured circulates through the floor heating and returns, a more accurate heat radiation amount can be known.

A floor heating apparatus according to an embodiment of the present invention includes a hot water pipe laid on a floor of a building, a heat source unit for supplying hot water to the pipe, and a valve for controlling hot water supply to each hot water pipe. ,
A sensor for detecting the temperature of the hot water supplied to each hot water pipe, a sensor for detecting the temperature of the hot water returning from each hot water pipe, and controlling the heat source device and the valve in response to signals from the thermometers A temperature difference between the temperature of the hot water supplied to the hot water pipe (outgoing temperature T _S ) and the temperature of the hot water returning from the pipe (return temperature T _B ). And, according to the temperature difference, the temperature of the hot water to be supplied,
And / or controlling the time (intermittent time) for turning on and off the supply of hot water. By providing a sensor for detecting the temperature of the hot water supplied to the hot water pipe (outgoing temperature T _S ) and the temperature of the returning hot water (return temperature T _B ), the floor temperature can be calculated from the amount of heat radiated. Can be estimated.

Further, in this embodiment, it is also possible that the control unit detects the temperature T _R of the chamber to be floor heating. By considering the actual room temperature, both the floor temperature and the room temperature can be controlled within a comfortable temperature range.

[0016]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a diagram schematically showing a floor heating device according to an embodiment of the present invention, and FIG.
(B) is a block diagram of a control unit. The heat source unit 1 of the floor heating device supplies hot water to the floor heating 5 and the air conditioner 7 through a hot water circulation pipe. Normally 60 for floor heating 5
During the hot dash operation, hot water at 80 ° C. is supplied. The air conditioner 7 is always supplied with hot water of 80 ° C. A control device 11 is provided in the heat source device 1. The control device 11 receives an operation command from the remote controller 3 for operating the air conditioner 7 and the floor heating 5.

The heat source unit 1 includes a heating expansion tank 13, a pump 15, a heat exchanger 17, a burner 19, a fan 21, and the like. Burner 19 is supplied with combustion gas from gas supply source 25 via gas proportional valve 23. Further, combustion air is sent from the fan 21 to the burner 19. The combustion gas from the burner 19 is sent to the heat exchanger 17. The heat exchanger 17 has a meandering water pipe and fins. Pump 15
The water sent to the heat exchanger 17 from is heated by the heat exchanger 17 and sent to the floor heating 5 and the air conditioner 7 through the outgoing pipeline 18. Hot water that has passed through floor heating 5 and air conditioner 7
Heating expansion tank 13 of heat source unit 1 through return line 12
Is returned to. The heating expansion tank 13 temporarily stores the returned hot water. A temperature sensor 3 is provided in the pipe on the exit side of the heat exchanger 17.
3 is provided, and a temperature sensor 31 is provided in a pipe on the heat exchanger inlet side.

Further, a temperature sensor 55 is provided in the floor heating going pipe 52, and a temperature sensor 57 is also provided in the return pipe 62.

Valves 35, 37, 51, 6 are provided in the hot water circulation line.
1 and the like are provided. The three-way valve 35 is provided at a position connecting the high-temperature side pipe line 18 passing through the heat exchanger 17 and the low-temperature side pipe line 16 not passing through the heat exchanger 17. By opening and closing the valve, hot water of 80 ° C. can be supplied to the air conditioner 7 and hot water of 60 ° C. and 80 ° C. can be separately supplied to the floor heating 5. The bypass valve 37 is connected to the high-temperature side line 18.
And a bypass line 38 connecting the air conditioner 7 and the return line 12 from the floor heating 5. This valve also opens and closes to separately supply hot water at 60 ° C. and 80 ° C. to the floor heating 5. The valves 51 and 61 are provided in the pipelines 52 and 62 for going to and returning from the floor heating 5, and perform ON-OFF control of the supply of hot water to the floor heating 5. The valve 53 and the valve 63 are provided in separately provided floor heating going and returning pipes.

Next, the operation of the heat source unit when the hot water supply temperature is set to 60 ° C. (normal operation) and 80 ° C. (hot dash operation) in the floor heating device will be described. FIG. 2 is a diagram schematically showing a hot water circulation system between a heat source unit and floor heating. FIG. 2A shows a case where hot water of 60 ° C. is supplied.
(B) shows the flow of hot water when 80 ° C. hot water is supplied. The hot water supply temperature to the floor heating device 1 is switched by opening and closing the three-way valve 35 and the bypass valve 37 from the hot dash operation control unit 103 of the control device 11.

When the temperature of the hot water is set to 80 ° C., FIG.
As shown in (A), only the port 35a of the three-way valve 35 on the pipeline side not passing through the heat exchanger 17 is closed,
The other ports 35b and 35c are opened. Bypass valve 37
(See FIG. 1) is closed. Therefore, the hot water is supplied from the heat exchanger 17 to the outlet pipe 18 and the floor heating pipe 52.
Through the floor heating 5 and return from the floor heating 1 to the pipeline 6
2 and returned to the thermal expansion tank 13. At this time, the combustion control unit 105 of the control unit 11 controls the fan 21 and the gas proportional valve 23 so that the hot water temperature detected by the temperature sensor 33 provided in the heat exchanger outlet pipe 18 becomes 80 ° C. I do. As a result, hot water of 80 ° C. is supplied to the floor heating 5.

When the temperature of the hot water is set to 60 ° C., FIG.
As shown in (B), only the port 35b on the outlet side of the heat exchanger of the three-way valve 35 is closed, and the other ports 35a,
35c is opened. Further, the bypass valve 37 is opened.
Therefore, the hot water is separated from the pump 15 into a pipe 18 passing through the heat exchanger 17 and a pipe 16 not passing through. The heat exchanger outlet line 18 leads directly to the return line 12 via a bypass line 38. Therefore, the hot water heated by the heat exchanger 17 returns directly to the tank 13. on the other hand,
The pipeline 16 that does not pass through the heat exchanger 17 is the pipeline 5 for floor heating.
2 and the warm water in the tank 13 is sent to the floor heating 1. From the floor heating 1, the return hot water is returned through the return pipe 62, merges with the bypass pipe 38 through which the hot water passes through the heat exchanger 17, and reaches the tank 13.

That is, since the pipe from the pump 15 to the heat exchanger 17 is branched, relatively low-temperature hot water that does not pass through the heat exchanger 17 is sent into the floor heating circulation pipe. On the other hand, the hot water heated by the heat exchanger 17 is supplied to the tank 13 to compensate for a decrease in the temperature of the hot water in the tank 13. By continuing this operation, high-temperature hot water and low-temperature hot water are mixed to generate appropriate-temperature hot water. At this time, the control unit 1 controls the temperature of the control unit 1 so that the temperature detected by the temperature sensor 55 (see FIG. 1) provided in the pipeline 52 for floor heating becomes 60 ° C.
The first combustion control unit 105 includes the fan 21 and the gas proportional valve 23.
Control. Thereby, hot water of about 60 ° C. is supplied to the floor heating 5.

As shown in FIG. 1B, the control device 11 includes a hot dash operation control unit 103 and a combustion control unit 10.
5 and the like are provided. Hot dash operation control unit 10
3 controls the three-way valve 35 and the bypass valve 37. The temperature detected by the temperature sensors 31 and 33 is input to the combustion control unit 105. Further, the combustion control unit 105 controls the fan 21 and the gas proportional valve 23 to adjust the amount of heat generated by the burner 19.

Further, the temperature detected by the temperature sensor 55 in the floor heating going pipe 52 and the temperature detected by the temperature sensor 57 in the return pipe 62 are input to the combustion control unit 105. The input temperature data is processed, and the outgoing pipeline 52 as an average value within a predetermined time (for example, 10 minutes) is processed.
And the temperature of the hot water in the return line 62 are obtained. From the obtained temperature, the difference between the forward temperature and the return temperature is determined. In addition, it is also possible to calculate the differential value of the temperature and perform control based on the value.

FIG. 3 is a flowchart showing the control of the floor heating device of FIG.
It is a low chart. First, in S10, the control unit 11
Input from the forward temperature sensor 55 and the return temperature sensor 57
The temperature data is read and processed numerically to calculate the temperature T
_S, Return temperature T _BGet. Next, at S11, T_S-T_BThe value of the
Is the first predetermined value T₁(For example, 15 degrees) or more.
T_S-T_BIs T₁If it is larger, the process proceeds to S12 and 8
High-temperature water of 0 ° C. is continuously supplied to the floor heating circulation line.

In S11, if T _S -T _B is smaller than T ₁ , the process proceeds to S13, and it is determined whether T _S -T _B is equal to or greater than a second predetermined value T ₂ (for example, 10 deg). If T _S -T _B is larger than T ₂ , the process proceeds to S14, and 60 ° C. hot water is continuously supplied. In S13, if T _S -T _B is smaller than T ₂ , the process proceeds to S15, and it is determined whether T _S -T _B is equal to or greater than a third predetermined value T ₃ (for example, 8 deg). If T _S -T _B is greater than T ₃ , the process proceeds to S16, where the hot water at 60 ° C. is intermittently (15
(ON for 5 minutes, OFF for 5 minutes). At S15, T _S
If −T _B is smaller than T ₃ , the process proceeds to S17, where T _S −
T _B determines whether a fourth predetermined value T ₄ (for example, 5 deg) or more. If T _S -T _B is larger than T ₄ , the process proceeds to S18, and the hot water at 60 ° C. is supplied intermittently (ON for 10 minutes, OFF for 10 minutes) with the ON time shorter than in S16.

In S17, if T _S -T _B is smaller than T ₄ , the process proceeds to S19, and it is determined whether T _S -T _B is equal to or greater than a fifth predetermined value T ₅ (for example, 3 deg). If T _S -T _B is greater than T ₅ , the process proceeds to S20, where the hot water at 60 ° C. is intermittently turned ON for a shorter time than in S18 (ON for 5 minutes,
(OFF for 5 minutes). In S19, T _S -T _B is T
If it is smaller than ₄ , proceed to S21 and add hot water of 60 ° C.
The ON time is set shorter than in the case of S20, and is supplied intermittently (ON for 3 minutes, OFF for 17 minutes).

In this example, particularly when the temperature difference is large, that is, when the bed temperature is estimated to be considerably low, hot water is supplied at a high temperature, so that the bed temperature can be raised quickly.

FIG. 4 is a flowchart showing another example of the control of the floor heating device of FIG. First, in S30, the control unit 11 causes the forward temperature sensor 55, the return temperature sensor 57
Is read and temperature-processed to obtain an outgoing temperature T _S and a return temperature T _B. Next, at S31, T _S -T
_It is determined whether the value of _B is equal to or greater than a first predetermined value T ₁ (for example, 10 deg). If T _S -T _B is greater than T ₁ , the process proceeds to S32, in which 60 ° C. hot water is continuously supplied to the floor heating circulation pipe.

At S31, T_S-T_BIs T₁Smaller than
If so, the process proceeds to S33 and T_S-T_BIs the second predetermined value T_Two(Example
For example, it is determined whether it is 8 deg) or more. T_S-T_BIs T_Twothan
If it is larger, the process proceeds to S34, and the hot water at 60 ° C. is intermittently (1).
(5 minutes ON, 5 minutes OFF). At S33, T
_S-T_BIs T_TwoIf it is smaller, the process proceeds to S35 and T _S
-T_BIs the third predetermined value T_Three(Eg 5deg) or more
You. T_S-T_BIs T_ThreeIf it is larger, proceed to S36.
ON time is shorter than that of S34
Supply intermittently (ON for 10 minutes, OFF for 10 minutes)
I do. At S35, T_S-T_BIs T_ThreeIf smaller than
Proceed to S37 and T_S-T_BIs the fourth predetermined value T _Four(Eg 3
deg) is determined. T_S-T_BIs T_FourLarger than
If so, the process proceeds to S38, in which hot water of 60 ° C.
Intermittently shorter than 6 (ON for 5 minutes, 15 minutes
OFF). In S37, T_S-T_BIs T_FourThan
If it is also smaller, proceed to S39 and turn on hot water at 60 ° C
Intermittently (3 minutes ON,
(OFF for 17 minutes).

In this embodiment, since hot water at a temperature of 60 ° C. is always supplied, there is no need to switch the temperature.
Control becomes easy.

FIG. 5 shows a floor heating device having a room temperature sensor.
9 is a flowchart illustrating another example of control. First, S
At 50, the controller 11 controls the going temperature sensor 55 to return
Temperature sensor 57, temperature data input from the room temperature sensor,
Read the set temperature, perform numerical processing, and go to the temperature T_S,return
Warm T_B, Room temperature T_R, Set temperature T_CGet. Next, S51
And T _S-T_BIs a predetermined value T₁(For example, 15deg)
Determine if it is above. T_S-T_BIs T ₁If it is larger than
Proceed to 52 to continuously supply 80 ° C. hot water.

In S51, if T _S -T _B is smaller than T ₁ , the process proceeds to S53, and it is determined whether T _R -T _C is equal to or more than a predetermined value T ₂ (for example, ₂ deg). If T _R -T _C is larger than T ₂ , the process proceeds to S54, and 60 ° C. hot water is continuously supplied. In S53, if T _R -T _C is smaller than T ₂ , S
Proceeds to 55, and supplies the set intermittent time corresponding to the difference between T _R and T _C.

In this embodiment, when the temperature difference between the forward temperature and the return temperature of the floor heating is small, that is, the floor temperature is estimated to be considerably high, the floor heating control is performed based on the difference between the room temperature and the set temperature. I do. Therefore, when combined with an air conditioner, the floor temperature can be appropriately controlled without excessively increasing the room temperature.

FIG. 6 is a flowchart showing another example of the control of the floor heating device. This floor heating device has a timer that detects the time when the valve for supplying hot water is opened and starts counting when the operation is started. When the operation is started, first, in S60, a valve for supplying hot water is opened. Next, S
At 61, the timer starts counting, and at the same time, detects the going temperature T _S. Next, in S62, the timer determines whether or not the time during which the hot water circulates through the floor heating has been counted.

The process proceeds to S63 if the circulation time is counted to detect the return temperature T _B. Then, the process proceeds to S64, in which the temperature difference T _S -T _B is obtained from the detected T _S and T _B , and the valve is controlled according to the temperature difference.

According to this embodiment, a more accurate amount of heat radiation can be known by measuring the return temperature when the warm water whose outgoing temperature has been measured circulates through the floor heating and returns.
Appropriate temperature control can be performed.

[0039]

As is apparent from the above description, according to the present invention, in the hot water type floor heating, the floor temperature is estimated from the difference between the forward temperature and the return temperature, and the floor temperature is appropriately adjusted according to the actual floor temperature. Thus, it is possible to provide a floor heating control method and a floor heating device capable of performing appropriate heating.

[Brief description of the drawings]

FIG. 1 is a diagram schematically showing a floor heating device according to an embodiment of the present invention, and FIG.
(B) is a block diagram of a control unit.

FIG. 2 is a diagram schematically showing a hot water circulation system between a heat source unit and floor heating. FIG. 2 (A) shows a case where hot water of 60 ° C. is supplied, and FIG. It is a figure which shows the flow of warm water at the time of supply.

FIG. 3 is a flowchart showing control of the floor heating device of FIG. 1;

FIG. 4 is a flowchart illustrating another example of control of the floor heating device of FIG. 1;

FIG. 5 is a flowchart illustrating another example of control of a floor heating device including a room temperature sensor.

FIG. 6 is a flowchart illustrating another example of control of the floor heating device.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Heat source unit 3 Remote control 5 Floor heating 11 Control device 12 Pipe line 13 Heating expansion tank 15 Pump 16 Pipe line 17 Heat exchanger 18 Pipe line 19 Burner 21 Fan 23 Valve 25 Gas supply source 31 Temperature sensor 33 Temperature sensor 35 Three-way valve 37 Bypass valve 51,53 valve 52 outgoing line 55 temperature sensor 57 temperature sensor 61,63 valve 62 return line 103 hot dash operation control unit 105 combustion control unit

Claims (14)

[Claims] 1. A floor heating control method for supplying heat into a building by circulating hot water through a hot water pipe laid on a floor of a building; the temperature of the hot water supplied to the hot water pipe (the outgoing temperature T) _S )
And a temperature difference between the temperature of the hot water returning from the pipeline (return temperature T _B ) and the temperature of the hot water to be supplied, and / or
A floor heating control method characterized by controlling a time (intermittent time) for turning on and off hot water supply. 2. A floor heating control method for supplying heat into a building by circulating hot water through a hot water pipe laid on a floor of a building; _S )
And the temperature difference between the temperature of the hot water and the temperature of the hot water returning from the pipeline (return temperature T _B ). If T _S −T _B ≧ T ₁ , high-temperature water is continuously flown into the hot water pipeline, and T ₁ When> T _S −T _B ≧ T ₂ , low-temperature water is continuously flown into the hot water pipeline, and when T ₂ > T _S −T _B , low-temperature water is intermittently flowed into the hot water pipeline. Floor heating control method. 3. A method of controlling floor heating in which hot water is circulated through a hot water pipe laid on the floor of a building to supply heat into the building; _S )
And the temperature of the hot water returning from the pipeline (return temperature T _B ), and when T _S −T _B ≧ T ₁ , the hot water is continuously passed through the hot water pipeline, and T ₁ > A floor heating control method characterized by flowing hot water intermittently through a hot water pipe when T _S -T _B. 4. A floor heating control method for supplying heat into a building by circulating hot water through a hot water pipe laid on a floor of a building; _S )
The temperature difference between the return from the conduit come hot water temperature (return temperature T _B), and detects the temperature T _R of the subject to the chamber floor heating, when T _S -T _B ≧ T ₃ and, ON-OFF of hot water supply and / or hot water supply according to the temperature difference
And when T ₃ > T _S −T _B , the temperature of the hot water to be supplied and / or the temperature according to the difference between the room temperature T _R and the temperature T _C set by the user. A floor heating control method characterized by controlling a time (intermittent time) for turning on and off hot water supply. 5. A method of controlling floor heating, in which hot water is circulated through a hot water pipe laid on the floor of a building to supply heat into the building, the temperature of the hot water supplied to the hot water pipe (outgoing temperature T) the temperature difference between _S) and the hot water returning from the conduit temperature (return temperature T _B), and detects the temperature T _R of the subject to the chamber floor heating, when T _S -T _B ≧ T ₄ the hot water continuously flowed into the hot water pipe, T _4> T _S when the -T _B, intermittently heated tube low-temperature water according to the difference between the set temperature T _C of the user and the room temperature T _R A floor heating control method characterized by flowing in a road. 6. The floor heating control method according to claim 1, wherein the control is started after a circulation time of the hot water has elapsed after the circulation of the hot water has started. In detecting 7. The temperature difference, according to the hot water forward temperature T _S of the time there, characterized by subtracting the hot water return temperature T _B after time hot water circulation time has passed from the Item 6. The floor heating control method according to any one of Items 1 to 5. 8. A hot water pipe laid on a floor of a building, a heat source unit for supplying hot water to the pipe, a valve for controlling hot water supply to each hot water pipe, and a hot water pipe supplied to each hot water pipe. A sensor for detecting the temperature of the hot water flowing from each hot water pipe, a sensor for detecting the temperature of the hot water returning from each hot water pipe, and a control unit for receiving the signals of the thermometers and controlling the heat source device and the valves. The controller detects a temperature difference between the temperature of the hot water supplied to the hot water pipe (outgoing temperature T _S ) and the temperature of the hot water returning from the pipe (return temperature T _B ); Depending on the temperature of the hot water supplied, and / or
A floor heating apparatus characterized by controlling a time (intermittent time) for turning on and off hot water supply. 9. A hot water pipe laid on a floor of a building, a heat source unit for supplying hot water to the pipe, a valve for controlling hot water supply to each hot water pipe, and a hot water pipe supplied to each hot water pipe. A sensor for detecting the temperature of the hot water flowing from each hot water pipe, a sensor for detecting the temperature of the hot water returning from each hot water pipe, and a control unit for receiving the signals of the thermometers and controlling the heat source device and the valves. the control unit detects the temperature difference between the temperature of hot water supplied to the hot water pipe (forward temperature T _S) and returning from the conduit the hot water temperature (return temperature T _B), T _S - When T _B ≧ T ₁ , high-temperature water is continuously flown into the hot water pipeline. When T ₁ > T _S −T _B ≧ T ₂ , low-temperature water is continuously flown into the hot water pipeline, and T ₂ > T floor heating device according to claim intermittently flowing hot water pipe and cold water when the _S -T _B. 10. A hot water pipe laid on the floor of a building, a heat source unit for supplying hot water to the pipe, a valve for controlling hot water supply to each hot water pipe, and a hot water pipe supplied to each hot water pipe. A sensor for detecting the temperature of the hot water flowing from each hot water pipe, a sensor for detecting the temperature of the hot water returning from each hot water pipe, and a control unit for receiving the signals of the thermometers and controlling the heat source device and the valves. the control unit detects the temperature difference between the temperature of hot water supplied to the hot water pipe (forward temperature T _S) and returning from the conduit the hot water temperature (return temperature T _B), T _S - A floor heating device characterized in that when T _B ≧ T ₁ , hot water is continuously flown into the hot water pipeline, and when T ₁ > T _S −T _B , hot water is intermittently flowed into the hot water pipeline. 11. A hot water pipe laid on a floor of a building, a heat source device for supplying hot water to the pipe, a valve for controlling hot water supply to each hot water pipe, and a hot water pipe supplied to each hot water pipe. A sensor for detecting the temperature of the hot water flowing from each hot water pipe, a sensor for detecting the temperature of the hot water returning from each hot water pipe, and a control unit for receiving the signals of the thermometers and controlling the heat source device and the valves. The control section determines the temperature difference between the temperature of the hot water supplied to the hot water pipe (outgoing temperature T _S ) and the temperature of the hot water returning from the pipe (return temperature T _B ), and the target of floor heating. comprising detecting the temperature T _R of the chamber, when the T _S -T _B ≧ T _3, in accordance with the temperature difference, and supplies hot water temperature, and / or, oN-OFF of the hot water supply
And when T ₃ > T _S −T _B , the temperature of the hot water to be supplied and / or the temperature according to the difference between the room temperature T _R and the temperature T _C set by the user. A floor heating control method characterized by controlling a time (intermittent time) for turning on and off hot water supply. 12. A hot water pipe laid on a floor of a building, a heat source device for supplying hot water to the pipe, a valve for controlling hot water supply to each hot water pipe, and a hot water pipe supplied to each hot water pipe. A sensor for detecting the temperature of the hot water flowing from each hot water pipe, a sensor for detecting the temperature of the hot water returning from each hot water pipe, and a control unit for receiving the signals of the thermometers and controlling the heat source device and the valves. The temperature difference between the temperature of the hot water supplied to the hot water pipe (outgoing temperature T _S ) and the temperature of the hot water returning from the pipe (return temperature T _B ), and the temperature T of the room to be subjected to floor heating. detects the _R, T _S -T _B ≧ T is flowed continuously heated pipe to hot water when the _4, T _4> T _S when the -T _B, room temperature T _R and the user-set temperature T A floor heating device characterized by intermittently flowing low-temperature water to a hot water pipe according to the difference from _C. 13. A hot water pipe laid on a floor of a building, a heat source unit for supplying hot water to the pipe, a valve for controlling hot water supply to each hot water pipe, and a time when the valve is opened. A timer that detects and starts counting, a sensor that detects the temperature of the hot water supplied to each hot water pipeline, a sensor that detects the temperature of the hot water returning from each hot water pipeline, and a signal from each of the above thermometers And a control unit for controlling the heat source device and the valve in response to the temperature. After the timer counts the circulation time of the hot water, the control unit controls the temperature of the hot water supplied to the hot water pipeline (the forward temperature T _S). ) And the temperature of the hot water returning from the pipeline (return temperature T _B ), and according to the temperature difference, the temperature of the hot water to be supplied and / or
A floor heating apparatus characterized by controlling a time (intermittent time) for turning on and off hot water supply. 14. A hot water pipe laid on a floor of a building, a heat source device for supplying hot water to the pipe, a valve for controlling hot water supply to each hot water pipe, and a hot water pipe supplied to each hot water pipe. A sensor for detecting a temperature of the hot water, a timer for detecting a time when the sensor detects the temperature of the hot water, and starting counting, a sensor for detecting a temperature of the hot water returning from each hot water pipe, A control unit that receives the signal of the thermometer and controls the heat source unit and the valve. After the timer counts the circulation time of the hot water, the control unit controls the temperature of the hot water supplied to the hot water pipeline ( Detecting a temperature difference between the outgoing temperature T _S ) and the temperature of the hot water returning from the pipeline (return temperature T _B ), and according to the temperature difference, the temperature of the hot water to be supplied, and / or
A floor heating apparatus characterized by controlling a time (intermittent time) for turning on and off hot water supply.