JPH1019281A - Hot water heating device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To increase the comfortable property of inside of a room regardless of a hating season or a district, in a hot water heating device, heating the inside of the room by supplying and circulating hot-water from a heat source machine into a floor heater. SOLUTION: A hot water heating device is provided with a room temperature sensor 20, detecting a room temperature, and a hot-water temperature sensor 8, detecting the hot-water temperature of a floor heater 22. The hot water heating device is also provided with a heating control unit 16 and a combustion control unit 3, which control the output hot-water temperature as well as the output hot-water flow rate of a heat source machine 2 based on the room temperature and the hot-water temperature of the floor heater 22. According to this method, the feedback of both of hot-water temperature of the floor heater 22 and the room temperature is effected whereby the output hot-water temperature and the output hot-water flow rate are regulated properly.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hot water heating apparatus for heating a room by operating a radiator such as a hot water floor heater or a hot air heater.

[0002]

2. Description of the Related Art Conventionally, in this type of hot water heating apparatus,
A comfortable heating operation is realized by appropriately adjusting the temperature and flow rate of the hot water supplied from the heat source device to the radiator. As the control method, a method of detecting the temperature of the hot water and performing control based on the temperature (hot water temperature control method) and a method of detecting the room temperature and performing control based on the detected temperature (room temperature control method) are known.

[0003]

However, in this case, since only one of the hot water temperature and the room temperature is fed back, the temperature distribution in the room becomes uneven, and it cannot be adapted to each heating season or region. However, sufficient comfort may not always be achieved.

[0004] That is, in the hot water temperature control method, although appropriate temperature control is performed in the vicinity of the radiator, the other places are not necessarily at an appropriate temperature, and indoor comfort is impaired. In addition, in the case of the room temperature control method, since the response at the time of feedback of the room temperature is poor, it is not possible to expect quick room temperature adjustment, and there still remains a problem that the comfort in the room remains.

[0005] In view of the above circumstances, an object of the present invention is to provide a hot water heating apparatus capable of enhancing indoor comfort regardless of a heating season or an area.

[0006]

That is, the present invention provides a hot water heating apparatus for heating a room by circulating and supplying hot water from a heat source device to a radiator, and comprising a room temperature sensor for detecting a room temperature.
A hot water temperature sensor for detecting a hot water temperature of the radiator is provided, and hot water control means for controlling a tapping temperature of the heat source device based on a room temperature and a hot water temperature of the radiator is provided.

The present invention also provides a hot water heating apparatus for heating a room by circulating and supplying hot water from a heat source device to a radiator, comprising a room temperature sensor for detecting a room temperature, and detecting a hot water temperature of the radiator. And hot water control means for controlling the flow rate of hot water from the heat source device based on the room temperature and the hot water temperature of the radiator.

The present invention also provides a hot water heating apparatus for heating a room by circulating and supplying hot water from a heat source device to a radiator, comprising a room temperature sensor for detecting a room temperature, and detecting a hot water temperature of the radiator. And hot water control means for controlling the hot water temperature and hot water flow rate of the heat source device based on the room temperature and the hot water temperature of the radiator.

[0009]

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

FIG. 1 is a system diagram showing an embodiment of a hot water heating apparatus according to the present invention, and FIG. 2 is a flowchart showing an example of a heating control program.

As shown in FIG. 1, the hot water heating apparatus 1 according to the present invention has a heating heat source unit 2, and the heat source unit 2 includes a combustion control unit 3 and a heat exchange pipe 5. A tapping temperature sensor 7 is connected to the combustion control unit 3 so as to be in contact with the heat exchange pipe 5. A flow pipe 9 is connected to one end of the heat exchange pipe 5, and a flow control valve 4 is connected to the other end.
The return pipe 10 is connected via the. A hot-water floor heater 22 is connected to the end of each of the going pipe 9 and the return pipe 10.
A heat radiation pipe 23 communicating with the return pipe 10 is provided.

A remote controller 25 is connected to the heat source unit 2 via a serial signal line 21.
5, a heating control unit 16 is incorporated. Further, a room temperature sensor 20 is attached to the remote controller 25, and the hot water temperature sensor 8 is connected in contact with the heat radiating pipe 23.

Since the hot water heating apparatus 1 according to the present invention has the above-described configuration, when performing the heating operation in the hot water heating apparatus 1, a desired set temperature T1 (for example, T1 = (20 ° C.), and then turns on the operation start switch (not shown). Then, together with the combustion control unit 3, the heating control unit 16 controls to perform a predetermined heating operation based on the heating control program PRG shown in FIG. 2 as described below.

First, in step S1 of the heating control program PRG, the heating control unit 16 performs hot water temperature maximum control to start heating the room. To this end, the hot water temperature T4 of the floor heater 22 is detected by the hot water temperature sensor 8 and the room temperature T2 is detected by the room temperature sensor 20, and these hot water temperatures T4,
After calculating the tapping temperature T5 and tapping flow rate F1 of the heat source unit 2 (that is, the temperature and flow rate of hot water to be supplied from the heat source unit 2) based on the room temperature T2, the tapping temperature T5 (for example, T5 = 80 ° C.), The tapping flow rate F1 is sent to the combustion controller 3 via the serial signal line 21 to instruct a maximum combustion operation.

In response to this, the combustion control unit 3 maximizes the heat exchange efficiency of the heat exchange pipe 5 by burning the burner (not shown) for heating the heat exchange pipe 5 to the maximum. After fully opening 4, the hot water valve (not shown) provided on the heat exchange pipe 5 is opened. Then, the hot water in the heat exchange pipe 5 is supplied to the heat radiating pipe 23 of the floor heater 22 through the going pipe 9, radiates heat therein to warm the room, and then returns to the heat source unit 2 through the return pipe 10. Since the hot water circulation operation between the heat source unit 2 and the floor heater 22 is repeated, the room temperature T
2 rises and the room warms.

At this time, since the tapping temperature T5 and tapping flow rate F1 of the heat source unit 2 are maximum, the amount of heat radiated per unit time by the floor heater 22 is also maximum, and the room is quickly warmed.

Next, in step S2 of the heating control program PRG, the heating control unit 16 determines whether or not the room temperature T2 detected by the room temperature sensor 20 is much lower than the set temperature T1. To do this, set temperature T1 and room temperature T2
And a temperature difference ΔT1 (= T1−T2) is calculated, and the temperature difference ΔT1 is calculated as a predetermined critical temperature T3 (for example, T3 = 10).
If the temperature difference ΔT1 is less than the critical temperature T3, it is determined that the room temperature T2 is not much smaller than the set temperature T1.

As a result, when it is determined that the room temperature T2 is much lower than the set temperature T1 (for example, immediately after the heating operation is started).
, It is necessary to rapidly heat the room, so that the heating control unit 16 detects the hot water temperature T4 of the floor heater 22 with the hot water temperature sensor 8 and the room temperature T2 with the room temperature sensor 20. After calculating the tapping temperature T5 and tapping flow rate F1 of the heat source unit 2 based on the temperature T4 and the room temperature T2, the tapping temperature T5 (for example, T5 = 80 ° C.) and tapping flow rate F1 are controlled via the serial signal line 21 for combustion control. This is sent to the section 3 to instruct a maximum combustion operation.

In response to this, in step S3 of the heating control program PRG, the combustion control unit 3 maximizes the heat exchange efficiency of the heat exchange pipe 5 by burning the burner to the maximum, and sets the flow control valve 4 After fully opening, the hot water valve is opened. Then, the hot water in the heat exchange pipe 5 is supplied to the heat radiating pipe 23 of the floor heater 22 through the going pipe 9, radiates heat therein to warm the room, and then returns to the heat source unit 2 through the return pipe 10.
Then, since the hot water circulation operation between the heat source device 2 and the floor heater 22 is repeated, the room temperature T2 rises and the room is warmed.

Also at this time, since the tapping temperature T5 and tapping rate F1 of the heat source unit 2 are maximum, the amount of heat radiated per unit time by the floor heater 22 is also maximum, and the room is quickly warmed up.

Next, in step S4 of the heating control program PRG, the heating control unit 16 changes the room temperature T2 to the set temperature T1.
It is determined whether or not: When it is determined that the room temperature T2 is not much lower than the set temperature T1 as a result of the determination in step S2 of the above-described heating control program PRG, rapid heating of the room is unnecessary, and the heating is not performed. The process skips step S3 of the control program PRG and enters step S4, where the above-described determination is performed.

As a result, if it is determined that the room temperature T2 is not lower than the set temperature T1, the heating control program PRG
Returning to step S1, the same operation is repeated, but the room temperature T
2 is determined to be equal to or lower than the set temperature T1, the room temperature T2 has not yet reached the set temperature T1, and it is necessary to continue heating the room.
In step S5, the heating control unit 16
In response to this, the combustion control unit 3 makes the ON time of the hot water valve longer than the OFF time.

Next, in step S6 of the heating control program PRG, the heating control section 16 waits for a predetermined time to elapse, and then enters step S7 of the heating control program PRG, in which the room temperature T2 exceeds the set temperature T1. It is determined whether or not there is.

As a result, if it is determined that the room temperature T2 is not higher than the set temperature T1, the heating control program PRG
Returning to step S1, the same operation is repeated, but the room temperature T
If it is determined that the room temperature T2 is equal to or higher than the set temperature T1, the room temperature T2 has already reached the set temperature T1 or higher, and it is not necessary to heat the room any more. Entering, heating control unit 1
Reference numeral 6 outputs an operation mitigation command to the combustion control unit 3, and in response thereto, the combustion control unit 3 makes the OFF time of the hot water valve longer than the ON time.

Next, in step S9 of the heating control program PRG, the heating control unit 16 waits for a predetermined time to elapse, and then proceeds to step S9 of the heating control program PRG.
In step 10, it is determined whether the room temperature T2 is much higher than the set temperature T1. For that, room temperature T2 and set temperature T1
And a temperature difference ΔT2 (= T2−T1) is calculated, and the temperature difference ΔT2 is calculated as a predetermined critical temperature T6 (for example, T6 = 8 ° C.).
If so, it is determined that the room temperature T2 is much higher than the set temperature T1, and if the temperature difference ΔT2 is less than the critical temperature T3, it is determined that the room temperature T2 is not much higher than the set temperature T1.

As a result, if it is determined that the room temperature T2 is not much higher than the set temperature T1, the operation returns to step S1 of the heating control program PRG and the same operation is repeated, but the room temperature T2 is changed to the set temperature T1. When it is determined that the temperature is much larger, the room temperature T2 needs to be lowered, so the process enters step S11 of the heating control program PRG, and the heating control unit 16 outputs an operation stop command to the combustion control unit 3, In response, the combustion control unit 3 lowers the tapping temperature T5 of the heat source unit 2 (for example, from 80 ° C. to 60 ° C.). Then, the hot water temperature T4 of the floor heater 22 decreases, and the heating capacity by the heat radiation from the heat radiation pipe 23 decreases.
Will naturally decrease.

Finally, in step S12 of the heating control program PRG, the heating control unit 16 determines whether the room temperature T2 is equal to or higher than the set temperature T1.

As a result, if it is determined that the room temperature T2 is equal to or higher than the set temperature T1, the heating control program PRG
Returning to step S4, the same operation is repeated, and the room temperature T2
Is not equal to or higher than the set temperature T1, the process returns to step S11 of the heating control program PRG and the same operation is repeated.

As described above, in the hot water heating apparatus 1, since both the hot water temperature T4 and the room temperature T2 of the floor heater 22 are fed back to the hot water control, the indoor temperature distribution becomes uniform and the radiant heat effect is improved. , Indoor comfort is improved.

In the above embodiment, the hot water heating apparatus 1 for controlling both the tapping temperature T5 and the tapping flow rate F1 of the heat source unit 2 has been described. However, one of the tapping temperature T5 and the tapping flow rate F1 is controlled. You may do so.

[0031]

As described above, according to the present invention, a hot water heating apparatus for circulating and supplying hot water from a heat source device to a radiator such as a floor heater to heat a room is provided with a room temperature sensor for detecting a room temperature. A hot water temperature sensor that detects a hot water temperature of the radiator, and a hot water control unit such as a heating control unit and a combustion control unit that controls a tapping temperature of the heat source device based on a room temperature and a hot water temperature of the radiator. In the heating operation, both the hot water temperature and the room temperature of the radiator are fed back and the hot water temperature is appropriately adjusted, so that it is possible to enhance the indoor comfort regardless of the heating season or the region. .

Further, according to the present invention, a hot water heating device for circulating and supplying hot water from a heat source device to a radiator such as a floor heater to heat a room is provided with a room temperature sensor for detecting a room temperature.
A hot water temperature sensor that detects a hot water temperature of the radiator; and a hot water control unit such as a heating control unit and a combustion control unit that controls a hot water flow rate of the heat source device based on room temperature and the hot water temperature of the radiator. With this configuration, during the heating operation, both the hot water temperature and the room temperature of the radiator are fed back, and the flow rate of the hot water is appropriately adjusted, so that the indoor comfort can be improved regardless of the heating season or the area.

Further, according to the present invention, a hot water heating apparatus for circulating and supplying hot water from a heat source device to a radiator such as a floor heater to heat a room is provided with a room temperature sensor for detecting a room temperature.
A hot water control unit such as a heating control unit and a combustion control unit that includes a hot water temperature sensor that detects a hot water temperature of the radiator, and controls a hot water temperature and a hot water flow rate of the heat source device based on a room temperature and a hot water temperature of the radiator. In the heating operation, both the hot water temperature and the room temperature of the radiator are fed back, and the tap water temperature and the tap water flow rate are appropriately adjusted, so that the indoor comfort is enhanced regardless of the heating season or the region. It becomes possible.

[Brief description of the drawings]

FIG. 1 is a system diagram showing one embodiment of a hot water heating apparatus according to the present invention.

FIG. 2 is a flowchart illustrating an example of a heating control program.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Hot water heating apparatus 2 ... Heat source device 3 ... Hot water control means (combustion control part) 8 ... Hot water temperature sensor 16 ... Hot water control means (heating control part) 20 ... Room temperature sensor 22 ... Heat radiator ( (Floor heater) T2: Room temperature T4: Hot water temperature T5: Hot water temperature F1: Hot water flow rate

Claims (3)

[Claims] 1. A hot water heating apparatus for heating a room by circulating and supplying hot water from a heat source device to a radiator, comprising: a room temperature sensor for detecting a room temperature; and a hot water temperature sensor for detecting a hot water temperature of the radiator. A hot water heating device comprising: hot water control means for controlling a tapping temperature of the heat source device based on a room temperature and a hot water temperature of the radiator. 2. A hot water heating apparatus for heating a room by circulating and supplying hot water from a heat source device to a radiator, comprising: a room temperature sensor for detecting a room temperature; and a hot water temperature sensor for detecting a hot water temperature of the radiator. A hot water heating apparatus comprising: hot water control means for controlling a flow rate of hot water from the heat source device based on room temperature and hot water temperature of the radiator. 3. A hot water heating device for circulating and supplying hot water from a heat source device to a radiator to heat a room, comprising: a room temperature sensor for detecting a room temperature; and a hot water temperature sensor for detecting a hot water temperature of the radiator. A hot water heating device comprising: hot water control means for controlling a hot water temperature and a hot water flow rate of the heat source device based on a room temperature and a hot water temperature of the radiator.