JP2006234343A - Heating control unit for floor heating system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a heating control unit capable of easily conducting floor heating corresponding to various hot water supply systems. <P>SOLUTION: This heating control unit is mounted on the way to transfer the heat of hot water generated in a heat source machine to a floor heating radiator in a living room, and has a circulation control function for the hot water carried to the floor heating radiator in the living room. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a heating control unit for a floor heating system and a floor heating system having the same, which can perform circulation control of hot water supplied to a floor heating radiator regardless of the specifications of a heat source machine.

  In buildings such as ordinary houses, apartment houses, hotels, hospitals, and elderly care facilities, floor heating systems that heat from the floor surface are becoming common for the purpose of improving the comfortability. Such a floor heating system heats a living room by radiating heat when hot water supplied from a heat source unit circulates through a hot water pipe in a floor heating radiator.

  As a heat source device for supplying hot water, a gas heat source device for supplying hot water and heating with a single unit is the mainstream. The heat source unit is designed in advance so that the floor heating can be performed, such as the circulation temperature, the circulation flow rate, the circulation pump process, the amount of water retained in the system, etc., and the floor heating can be performed only by connecting a predetermined radiator. .

  However, currently, the system that can supply hot water is diversified, such as heat pump type, district heating system, solar water heater, geothermal use, etc. While it is expected that fuel cells will be put on the market in the near future, Since these systems do not incorporate the above-mentioned design specifications, they cannot be used for floor heating as they are.

  Taking a district heating system as an example, primary heat exchange is performed for factory waste heat, etc., and circulating hot water created on the secondary side is routed to a panel radiator installed in the room to dissipate heat into the room. To do. Each room has a return port for circulating hot water, but the floor heating radiator cannot be connected directly because the balance of temperature, pressure, flow rate, etc. is not balanced, and floor heating cannot be performed as it is.

  Then, this invention aims at provision of the heating control unit which can implement | achieve floor heating easily corresponding to various hot water supply systems.

  The present invention will be described below. In order to facilitate understanding of the present invention, reference numerals in the accompanying drawings are appended in parentheses, but the present invention is not limited to the illustrated embodiment.

  1st aspect of this invention is provided in the middle of transferring the heat | fever of the warm water which generate | occur | produces with a heat source machine (20) to the floor heating radiator (31-35) in a living room, The above-mentioned problems are solved by providing a heating control unit (10) characterized by having a function of controlling the circulation of hot water conveyed to 31-35).

  In this aspect, the heating control unit (10) includes warm water circulating through a primary circuit that is a pipe circulating between the heat source machine (20) and the heat exchanger (1), and a floor heating radiator (31-31). 35) and the heat exchanger (1), and the temperature is preferably adjusted by heat exchange with the hot water circulating in the secondary side circulation path, which is a pipe circulating between the The side circulation path consists of a heat exchanger (1), a thermal valve (2, 3), a forward header (4, 5), a floor heating radiator (31-35), a return header (7), a pump (6), And it is a pipe that circulates again through the path of the heat exchanger (1), and a pipe between the heat exchanger (1) and the thermal valve (2, 3), the return header (7), and the It is preferable that a circulation pipe (8) that connects the pipe to the pump (6) is provided.

  Furthermore, the thermal valve (2, 3) is preferably one that opens and closes by being given a signal for opening / closing control based on external temperature information, and the temperature adjustment of the hot water is performed by a floor heating radiator ( When the room temperature detected by the temperature controller (41, 42) provided in the room where 31-35) is installed is higher than the set temperature, the thermal valve (2, 3) is closed, and the temperature When the room temperature detected by the controller (41, 42) is lower than the set temperature, the thermal valve (2, 3) is preferably opened to adjust to the set temperature.

  Furthermore, the thermal valves (2, 3) are preferably opened and closed at predetermined intervals even when the hot water circulation is stopped in order to suppress a decrease in the floor surface temperature.

  According to these inventions, since any hot water can be flowed to the primary side of the heat exchanger (1), a heating control unit (10) that can cope with various heat sources and can realize comfortable floor heating is provided. be able to.

  A second aspect of the present invention provides a floor heating system (100) that is connected to the heating control unit (10) according to any one of claims 1 to 6 to solve the above-mentioned problem.

  According to the invention of the second aspect, it is possible to provide a comfortable floor heating system (100) that can cope with various heat sources.

  The heating control unit of the present invention is a detachable unit in which parts for adjusting the hot water temperature of the floor heating system are housed in one case. Therefore, since it can be easily installed by connecting to the piping on the piping route, the construction is simple, and repairs, parts replacement, and the like can be easily performed. Moreover, since the heating control unit is connected in the middle of the piping path between the heat source machine and the floor heating radiator, the hot water temperature can be finely adjusted.

  Such an operation and a gain of the present invention will be clarified from the best mode for carrying out the invention described below.

  Hereinafter, the present invention will be described based on embodiments shown in the drawings. FIG. 1 is a diagram schematically showing a configuration of a floor heating system 100 to which a heating control unit 10 of the present invention is connected. In the floor heating system 100, two floor heating radiators 31 and 32 are laid in the room A, and three floor heating radiators 33, 34, and 35 are laid in the room B, and the heat of the hot water circulating through them is laid. Is supplied from one heat source device 20.

  The piping through which the hot water circulates is a primary side circulation path that is a path that circulates between the heat source unit 20 and the heat exchanger 1, and exits the heat exchanger 1, circulates through the floor heating radiators 31 to 35, and then again There are two systems of secondary side circulation paths that return to 1, and the hot water flowing through each path does not directly intersect, and only heat exchange is performed in the heat exchanger 1. That is, the hot water circulating in the primary side circulation path exchanges heat in the heat exchanger 1 to supply heat to the hot water circulating in the secondary side circulation path.

  In order to quickly adjust the temperature, a sensor for measuring the hot water temperature is provided at the outlet pipe of the heat exchanger 1 of the secondary side circulation path, and the adjustment for controlling the flow rate of the hot water at the inlet of the heat exchanger 1 of the secondary side circulation path It is also possible to provide a valve and connect the sensor and the control valve with an electric signal so that the flow rate can be controlled by temperature.

  The hot water on the secondary circulation path side that has come out of the heat exchanger 1 circulates through the hot water pipes in the floor heating radiators 31 to 35 via the outgoing headers 4 and 5 for the two rooms A and B, respectively. Return to the heat exchanger 1 again via the return header 7 and the pump 6. Thermal valves 2 and 3 are provided between the heat exchanger 1 and the forward headers 4 and 5, respectively.

  In FIG. 1, the heating control unit 10 of the present invention is an independent unit composed of a heat exchanger 1, thermal valves 2 and 3, a pump 6, and forward headers 4 and 5 and a return header 7. It is. These components are housed in one case of about 400 mm × 400 mm × 400 mm made of metal or resin, and are installed inside or outside the living room. Since the heating control unit 10 can be easily installed by connecting to the piping on the piping path of the floor heating system, it is easy to install, and by providing a door on the case, repair, parts Exchange etc. can also be performed easily. When different types of floor heating radiators are used in a single dwelling unit and the hot water supply set temperature varies depending on the type of floor heating radiator, a plurality of heating control units 10 may be provided.

  The forward headers 4 and 5 branch one outgoing pipe into a plurality of outgoing pipes, and, like the floor heating system 100 in FIG. Used when supplying warm water warmed in Similarly, the return header 7 collects a plurality of return pipes from the plurality of floor heating radiators 31 to 35 into one. By using the forward headers 4 and 5 and the return header 7, the piping path and structure in the heating control unit 10 can be simplified, and the size of the heating control unit 10 can be reduced to save space. Moreover, since the piping connected with the heat exchanger 1 and the pump 6 is one, it is not necessary to provide the some pump 6, for example, and it is also cost reduction.

  The pump 6 has a role of circulating hot water in order to flow a predetermined flow rate through the floor heating radiators 31 to 35. The pump may be stopped when the floor heating / radiating system 100 is not operating, but since the hot water can be circulated without passing through the floor heating radiators 31 to 35 by the circulation pipe 8 described later, the operation of the pump is continued. It may be.

  The thermal valves 2 and 3 are electromagnetic valves that automatically open and close by receiving a signal for opening and closing the valve by an electric signal or a radio signal. When the thermal valves 2 and 3 are closed, hot water is supplied to the floor heating radiators 31 to 35. When the operation is stopped and the heat operated valves 2 and 3 are opened, hot water is supplied to the floor heating radiators 31 to 35. As in the floor heating system 100 of FIG. 1, when there are floor heating radiators in a plurality of rooms in one dwelling unit and the set temperatures of each room are different, each room is thus independent. By providing a plurality of operating thermal valves, supply control of hot water according to the temperature setting of each room can be performed. When all the living rooms A and B are higher in temperature than the set temperature, all the heat valves 2 and 3 are closed, so that the hot water discharged from the heat exchanger 1 is transferred to the heat exchanger 1 and the heat valves 2 and 3. And a circulation path 8 that connects the piping between the return header 7 and the pump 6, and circulates a piping path that returns to the heat exchanger 1 again via the pump 6. . At this time, the valve 9 is opened.

  The opening and closing of the thermal valves 2 and 3 is executed according to programming that is previously performed in temperature controllers 41 and 42 described later. The thermal valves 2 and 3 may be opened and closed at any time based on the signal, but are preferably performed at regular intervals. For example, if the temperature inside the room is higher than the set temperature, the thermal valve will remain closed until the set temperature is reached, and no hot water is supplied to the floor heating radiator. Compared with, the floor surface temperature, which has a faster temperature drop rate, suddenly drops, creating a temperature difference between the room temperature and the floor surface temperature, which makes people in the room feel uncomfortable. Even when the temperature is higher than the set temperature, the temperature difference between the floor surface temperature and the room temperature can be reduced by opening and closing at regular intervals. The interval between the open / close times of the thermal valves 2 and 3 can be arbitrarily set, and can be set in consideration of the temperature difference between the living rooms A and B in which the floor heating radiator is installed and the outside air, for example.

  Signals for operating the thermal valves 2 and 3 are sent via signal lines from temperature controllers 41 and 42 installed in the living rooms A and B, respectively. The temperature controllers 41 and 42 open and close the thermal valves 2 and 3 based on the set temperature input function in the room, the function to detect the room temperature, the function to calculate the difference between the room temperature and the set temperature, and the calculation result. And a transmission function for transmitting a command signal. When the indoor temperature is lower than the set temperature, the temperature controllers 41 and 42 send signals for opening the thermal valves 2 and 3 to the thermal valves 2 and 3 via the signal lines 51 and 52, respectively. When it is high, a signal for closing the thermal valves 2 and 3 is sent. Based on the signals from the temperature controllers 41 and 42, the thermal valves 2 and 3 control the flow rate of warm water supplied to the floor heating radiators 31 to 35 through the floors from the floor heating radiators 31 to 35. Rooms A and B are maintained at a predetermined room temperature by radiant heat. The temperature controllers 41 and 42 can also detect the circulating hot water temperature and control the opening and closing of the thermal valves (2, 3).

  The installation location of the temperature controllers 41 and 42 is arbitrary, but if installed on a wall surface of about 120 to 170 cm from the floors in the living rooms A and B, it is easy to change the set temperature, etc. Convenient in that it can be controlled. The temperature set for opening and closing the thermal valves 2 and 3 may be the same as the temperature for opening and the temperature for closing, but by setting the temperature for opening to about 2 ° C. lower than the temperature for closing, It is preferable to reduce the mechanical load on the thermal valves 2 and 3 by reducing the number of opening and closing operations of the valves 2 and 3.

  Although the present invention has been described with reference to the most practical and preferred embodiments at the present time, the invention is limited to the embodiments disclosed herein. However, the present invention can be changed as appropriate without departing from the spirit or concept of the invention that can be read from the claims and the entire specification, and a heating control unit with such a change and a floor heating system having the same are also disclosed in the present invention. Should be understood as being included in the scope.

It is a figure showing roughly composition of floor heating system 100 to which heating control unit 10 of the present invention was connected.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Heat exchanger 2, 3 Thermal valve 4, 5 Outward header 6 Pump 7 Return header 8 Circulation piping 9 Valve 10 Heating control unit 20 Heat source machine 31, 32, 33, 34, 35 Floor heating radiation mat 41, 42 Temperature control Machine 51, 52 Signal line 100 Floor heating system

Claims (7)

Heating control characterized in that it has a circulation control function of hot water that is provided in the middle of transferring the heat of the hot water generated in the heat source device to the floor heating radiator in the living room and is carried to the floor heating radiator in the living room. unit. Circulates the hot water circulating through the primary circuit, which is the piping that circulates between the heat source unit and the heat exchanger, and the secondary circuit, which is the piping that circulates between the floor heating radiator and the heat exchanger. The heating control unit according to claim 1, wherein the temperature is adjusted by heat exchange with warm water. The secondary side circulation path is a pipe that circulates through a path of a heat exchanger, a thermal valve, a forward header, a floor heating radiator, a return header, a pump, and a heat exchanger again, and the heat exchanger and the The heating control unit according to claim 1 or 2, further comprising a circulation pipe that connects a pipe between a thermal valve and a pipe between the return header and the pump. The heating control unit according to any one of claims 1 to 3, wherein the thermal valve opens and closes by being given a signal for opening and closing control based on external temperature information. When the temperature of the hot water is higher than the set temperature detected by the temperature controller provided in the room where the floor heating radiator is installed, the thermal valve is closed and detected by the temperature controller. When the indoor temperature which was made is lower than preset temperature, it is what is adjusted to preset temperature by opening the said thermal valve, The any one of Claims 1-4 characterized by the above-mentioned. Heating control unit. The heating control unit according to claim 5, wherein opening and closing of the thermal valve is performed at regular time intervals. The floor heating system formed by connecting the heating control unit of any one of Claims 1-6.

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