JP2002061854A - Underfloor heating device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an underfloor heating device to set temperature at each of rooms even in a case of a so called one-pipe system where a plurality of radiators are interconnected in series. SOLUTION: The underfloor heating device 1 comprises a boiler 4 installed outside a building A; a first radiator 2 installed in an underfloor space 8 of a first floor; a second radiator 3 installed in an underfloor space C of a second floor; and a hot water pipe 5 through which each radiator is coupled to a boiler 4. The first and second radiators 2 and 3 and the boiler 4 are one-pipe system where the numbers are interconnected in series. First and second flow rate regulating valve 6 and 7 are situated at a connection part between the first and second radiators 2 and 3 and the hot water pipe 5, and first and second remote controllers 9 and 11 incorporating first and second temperature sensors 8 and 10 are situated on the inner wall surfaces of each room. By adjusting a radiation amount of each of the first and second radiators 2 and 3 by the first and second flow rate regulating valves 6 and 7, temperature is set at each of rooms.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an underfloor heating device for heating a room by heating an underfloor space.

[0002]

2. Description of the Related Art In a conventional underfloor heating apparatus, a plurality of radiators are installed in an underfloor space of a building, and hot water is circulated from a boiler to the radiator to heat the underfloor space. The room is heated from the floor. Further, a ventilation hole is provided on the floor surface for communicating the underfloor space with the room, and air heated in the underfloor space enters the room through the ventilation hole to directly heat the room. As described above, in the underfloor heating device, the room is heated by warming the floor material and the room air.

[0003] This type of underfloor heating apparatus heats the entire building by heating the underfloor space. Even in a building having a plurality of rooms, it does not separately heat each room. Did not. For this reason, the connection between a plurality of radiators and the boiler uses a so-called single-pipe type pipe that has a simple structure, low cost, and easy installation work, and the plurality of radiators are connected in series with the boiler. It had been.

However, recently, there has been a demand for changing the temperature of each room while heating the entire building. However, in the case of the single-pipe system, since each radiator is connected in series to the boiler, it has been difficult to separately adjust the amount of heat radiation.

[0005]

SUMMARY OF THE INVENTION The present invention aims at improving an underfloor heating device, and more specifically, even in the case where a plurality of radiators are connected in series to solve the above-mentioned inconvenience. It is another object of the present invention to provide an underfloor heating device capable of controlling the temperature of each room.

[0006]

In order to achieve the above-mentioned object, an underfloor heating device according to the present invention heats a floor material by heating an underfloor space of each room in a building having a plurality of rooms. An underfloor heating device for heating a room by supplying warm air into the room from a vent provided in the floor material and communicating the room and the underfloor space, and has the following features. First,
The boiler includes a boiler for heating hot water, and a plurality of radiators connected to the boiler in series by a hot water passage that heats an underfloor space of each room with the hot water. Further, the hot water passage has a forward path to which hot water is supplied from the boiler side, a return path returning to the boiler side, and a bypass path connecting the forward path and the return path. A flow rate control valve that controls the flow rate of hot water supplied to the radiator by increasing or decreasing the flow rate of the bypass passage; and a temperature sensor that detects a temperature in a room of each room and is electrically connected to the flow rate control valve. Are provided. Then, the heat radiation amount of the radiator provided in the underfloor space of the room is adjusted according to the room temperature of each room detected by the temperature sensor.

According to the underfloor heating device of the present invention, a temperature sensor is provided in each of a plurality of rooms, and a radiator provided in the underfloor space of each room according to the temperature of the room detected by the temperature sensors. Therefore, even if the underfloor heating device has the plurality of radiators connected in series, the temperature can be separately adjusted for each room.

In addition, since the underfloor heating device heats the room by supplying warm air from the vent to the room, in order to accurately control the temperature of the room, it is necessary to connect the vent to the temperature sensor. The distance and the height of the temperature sensor from the floor are important. In the underfloor heating device of the present invention, the temperature sensor is electrically connected to the flow rate control valve, and it is easy to connect to the flow rate control valve from an installation location in a room. Can be installed easily. For this reason, the temperature sensor can be easily installed at a position suitable for indoor temperature control.

The amount of hot water supplied to each radiator may be adjusted by adjusting the flow rate of the hot water by increasing or decreasing the opening of the flow control valve. It may be adjusted by supplying / cutting off the hot water supplied to the radiator.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, an embodiment of the underfloor heating apparatus according to the present invention will be described with reference to FIGS. FIG. 1 is an explanatory diagram showing a state in which the underfloor heating device of the present embodiment is installed in a building, and FIG. 2 is an explanatory diagram showing configurations of a radiator and a flow control valve.

As shown in FIG. 1, the underfloor heating apparatus 1 of this embodiment includes a boiler 4 installed outside a building A having a plurality of rooms, and a underfloor space B of a room on the first floor of the building A. , The second radiator 3 installed in the underfloor space C of the room on the second floor, and a hot water pipe (see FIG. 1) connecting the first radiator 2 and the second radiator 3 to the boiler 4 ( (A hot water passage) 5. The first radiator 2, the second radiator 3, and the boiler 4 are connected in series by a hot water pipe 5 as shown in FIG. In addition, the first radiator 2 is an underfloor space B on the first floor having a high height.
The second radiator 3 is installed horizontally in accordance with the low-floor underfloor space C on the second floor.

A first flow control valve 6 is provided at a connection between the first radiator 2 and the hot water pipe 5, and a second flow control valve is provided at a connection between the second radiator 3 and the hot water pipe 5. 7 are provided. A first remote controller 9 having a first temperature sensor 8 is provided on the wall surface of the first floor room, and a second remote controller 11 having a second temperature sensor 10 is provided on the wall surface of the second floor room. Have been. Further, the floor material D on the first floor and the floor material E on the second floor of the building A are provided with a ventilation port F communicating between the room and the underfloor space, and are formed in a ladder shape on the upper surface of the ventilation port F. A rough gallery G is provided.

As shown in FIG. 2, the first and second flow rate control valves 6 and 7 include a forward path 12 through which hot water is supplied from the boiler 4 to the first and second radiators 2 and 3, and a first and second flow rate control valves. 2 radiator 2,
3 is provided with a return path 13 from which hot water is led out, and a bypass path 14 connecting the outward path 12 and the return path 13. A valve body 15 is provided at a location where the forward path 12 and the bypass passage 14 communicate with each other. The valve body 15 is moved right and left in FIG. Further, the thermal valve 16 is electrically connected to first and second temperature sensors 8 and 10 built in the first and second remote controllers 9 and 11. Thus, in the underfloor heating device 1 of the present embodiment, the radiator and the temperature sensor are provided for each room.

Next, the operation of the underfloor heating device 1 of the present embodiment will be described. The underfloor heating device 1 of the present embodiment is normally operated for 24 hours in winter, and continuously heats the building A until a user gives an instruction to stop the operation. Here, when the indoor temperature (set temperature) set by the user is high or the outside air temperature is low, the valve body 15 is moved to the left side in FIG. Is supplied to the first radiator 2 through the outward path 12 of the first flow control valve 6, and the return path 1
3 to the second radiator 3. Also in the second radiator 3, the hot water from the first flow control valve 6 is supplied to the second radiator 3 via the forward path 12 of the second flow control valve 7 and returned to the boiler 4 via the return path 13.

During operation, the first temperature sensor 8 built in the first remote controller 9 detects the temperature in the room on the first floor, and the controller (not shown) provided in the first remote controller 9 actually detects the temperature. And the set temperature are compared. Here, when the user lowers the set temperature in the room on the first floor by the first remote controller 9 or when the room temperature reaches the set temperature and the actual room temperature becomes higher than the set temperature, the controller sends A signal is transmitted to one flow control valve 6. In the first flow control valve 6, the thermal valve 16 is moved to the right in FIG. 2 by a signal from the controller. As a result, the bypass passage 14 is opened, and the hot water flows into the return path 13 via the bypass passage 14, so that the amount of the hot water supplied to the first radiator 2 decreases,
The heat radiation amount of the radiator 2 is reduced. As described above, when the amount of heat radiation from the first radiator 2 decreases, the temperature in the underfloor space B on the first floor gradually decreases, and the temperature of the air flowing from the gallery G into the room on the first floor also decreases. The temperature in the room on the floor gradually decreases. Thereby, the temperature in the room on the first floor is adjusted to the set temperature set by the user.

When the user raises the set temperature of the first floor room by the first remote controller 9 from this state, the temperature of the first floor room is detected by the first temperature sensor 8 and the actual room temperature is detected by the controller. The temperature and the set temperature are compared. When the actual room temperature is lower than the set temperature,
A signal is transmitted from the controller to the first flow control valve 6,
The thermal valve 16 is moved to the left in FIG. Thus, the amount of hot water flowing from the bypass passage 14 to the return path 13 decreases, and the amount of hot water supplied to the first radiator 2 increases, so that the amount of heat radiation of the first radiator 2 increases. This allows
The temperature in the underfloor space B on the first floor gradually increases, and the temperature of the air flowing from the gallery G into the room on the first floor also increases.
The room temperature on the floor gradually rises. Thereby, the temperature in the room on the first floor is adjusted to the set temperature set by the user.

Also, on the second floor, the controller adjusts the second flow control valve 7 in accordance with the set temperature set by the second remote controller 11 as in the case of the first floor, and the heat radiation amount of the second radiator 3 is increased. To adjust the temperature of the room on the second floor to the set temperature.

As described above, the underfloor heating device 1 of the present embodiment
According to this, even in a so-called single tube system in which a plurality of radiators are connected in series, it is possible to set the temperature for each room while heating the entire building A.

The thermal valve 16 drives the valve element 15 by expanding / contracting the thermowax by turning on / off the energization of the electric heater, and moves the valve element 15 to the right in FIG. The heat radiator can be stopped by moving it to close the outward path 12 and flowing all the hot water to the bypass passage 14. Therefore, according to the underfloor heating device 1 of the present embodiment, the use time of the radiator can be set by a timer or the like, so that not only the temperature setting for each room but also the “floor heating” for each room. "Cut" can also be set.

In this embodiment, the case where a plurality of radiators are installed on the first floor and the second floor has been described. Similarly, the temperature can be set for each room.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram showing a state in which an underfloor heating device, which is an example of an embodiment of the present invention, is installed in a building.

FIG. 2 is an explanatory diagram showing a configuration of a radiator and a flow control valve.

[Explanation of symbols]

1: Underfloor heating device, 2: First radiator, 3: Second radiator,
4 boiler, 5 hot water pipe (hot water passage), 6 first flow control valve, 7 second flow control valve, 12 outbound path, 13 return path, 14 bypass path, A building, B 1 Underfloor space on the floor, C: Underfloor space on the second floor, D: Floor material on the first floor, E: Floor material on the second floor, F: Vent.

Claims (1)

[Claims] In a building having a plurality of rooms, an underfloor space of each room is heated to heat a floor material, and warm air is blown from a vent provided in the floor material and communicating between the room and the underfloor space. An underfloor heating device that supplies the room and heats the room, comprising: a boiler for heating hot water; and a plurality of radiators connected in series to the boiler by a hot water passage that heats an underfloor space of each room with the hot water. The hot water passage has a forward path to which hot water is supplied from the boiler side, a return path returning to the boiler side, and a bypass path connecting the forward path and the return path. Is a flow control valve that controls the flow rate of hot water supplied to the radiator by increasing or decreasing the flow rate of the bypass passage, and a temperature that detects the temperature in the room of each room and is electrically connected to the flow control valve. Provided with a sensor The as the temperature of the room for each room detected by the temperature sensor, underfloor heating system, characterized in that to adjust the heat radiation amount of the radiator provided on the underfloor space 該部Ya.