JPH04132312U - Temperature control device for floor heating system - Google Patents

Abstract

(57) [Summary] [Purpose] By controlling the floor temperature at the same time as indoor temperature, excessive rise in floor temperature is suppressed, providing comfortable floor heating and further protecting the floor surface. [Configuration] A room temperature sensor 4 that detects the indoor temperature, a floor temperature sensor 5 that detects the floor temperature, an indoor temperature control function that controls the indoor temperature to a preset temperature Ts, and a floor temperature sensor that adjusts the floor temperature in advance. The control device main body 6 is provided with a floor temperature control function that controls the floor surface temperature with priority over the room temperature so that the temperature becomes equal to or lower than the set upper limit temperature Tu.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

This invention circulates heated heat transfer fluid through heat pipes installed on the floor of houses, etc. The present invention relates to a temperature control device for a floor heating system that performs heating at the same time.

0002

[Conventional technology]

Generally, heating is done by circulating heated heat transfer fluid through heat pipes installed on the floor. Underfloor heating systems that perform It is equipped with a temperature control device that controls the internal temperature to a predetermined set temperature.

0003 Conventional temperature control devices measure the indoor temperature using a temperature sensor installed at a predetermined location in the room. At the same time, the control valve is switched and controlled based on the detected temperature to heat the heat transfer liquid. By supplying or stopping the supply to the outlet pipe, the indoor temperature is maintained at the set temperature. I was in control.

0004

[Problem that the idea aims to solve]

However, in the case of the above-mentioned floor heating system, the floor surface temperature is higher than the indoor temperature. However, the relationship between floor temperature and indoor temperature depends on indoor ventilation conditions, outside air temperature, etc. It will not be constant. In addition, conventional temperature control devices focus only on indoor temperature and control it. Therefore, even if the indoor temperature is maintained at the set temperature, the floor temperature will fluctuate greatly. There are many cases where it becomes excessively high. After all, if the floor surface is too hot, it will cause discomfort, In addition to not being able to provide comfortable floor heating, the materials that make up the floor (such as jutan and There were disadvantages such as deterioration of the belling material, etc.

[0005] This invention solves the problems that exist in conventional technology, and it By controlling the floor surface temperature at the same time as the Temperature control for underfloor heating systems that can realize underfloor heating and further protect the floor surface. The purpose is to provide control equipment.

[0006]

[Means to solve the problem]

In the present invention, a heat medium supply source 3 supplies heat to a heat pipe 2 laid on the floor F. A temperature control device 1 for a floor heating system that performs heating by circulating a heated heat medium liquid. When configuring, in particular, a room temperature sensor 4 that detects indoor temperature and a floor temperature sensor A floor temperature sensor 5 is used to control the indoor temperature to a preset temperature Ts. Indoor temperature control function and floor temperature control function to keep the floor temperature below the preset upper limit temperature Tu. , a control device main body 6 having a floor temperature control function that controls the temperature with priority over the indoor temperature. It is characterized by being prepared.

[0007]

[Effect]

According to the temperature control device 1 according to the present invention, the indoor temperature is detected by the room temperature sensor 4. Then, the detection signal is given to the control device main body 6. On the other hand, the floor temperature sensor 5 detects the floor surface temperature. The temperature is detected and a detection signal is given to the control device main body 6.

[0008] If the floor surface temperature is below the preset upper limit temperature Tu, the control device main body 6 performs feedback control of the indoor temperature based on a preset temperature Ts. Ma In addition, when the floor temperature exceeds the upper limit temperature Tu, priority is given to controlling the floor temperature. The control device main body 6 controls the floor surface temperature so that it does not exceed the upper limit temperature Tu.

[0009]

【Example】

Next, preferred embodiments of the present invention will be described in detail based on the drawings.

0010 First, regarding the overall configuration of the floor heating system including the temperature control device 1 according to the present invention. , will be explained with reference to FIGS. 1 and 2.

[0011] 3 is a heat medium supply source including a boiler and a pump. 11 is the supply line A heated heat medium liquid (for example, antifreeze liquid) is supplied from a heat medium supply source 3 . difference Furthermore, 12 is a return line, and the heat transfer liquid after heat exchange is passed through the return line 1. 2 to the heat medium supply source 3.

0012 On the other hand, a header 13 is connected between the supply line 11 and the return line 12. Hehe Usually, a plurality of dars 13 are installed in each room. Inside one header 13 The supply side branch pipe 14 branched from the supply line 11 and the return line 12 are separated from each other. A branched return side branch pipe 15 is provided. In the middle of the supply side branch pipe 14, there are three The input port of the switching valve 16 and one output port are connected, and the three-way switching valve 1 On the upstream side of 6, there is an on-off valve 17 from the supply line 11 side, and a strainer 1 for removing dust. Connect 8 in sequence. On the other hand, the return side branch pipe 15 is opened and closed from the return line 12 side. The valve 19 and check valve 20 are connected in sequence. The return valve located upstream of the check valve 20 A reverse pipe 15r is formed in the downstream branch pipe 15, and this reverse pipe 15r and the third Between the supply side branch pipes 14 downstream of the direction switching valve 16, there are a plurality of pipes laid on the floor F. Connect heat pipe 2...

[0013] The heat pipe 2 is a pipe material made of rubber, metal, synthetic resin, etc. As shown in Figure 2, the self-leveling material is installed on top of the flooring material Fs, and Cover with ring material L. Then, spread Jutan J, etc. on top of the self-leveling material L. This constitutes the floor surface F.

[0014] In addition, the other output port of the three-way switching valve 16 and the return on the downstream side of the check valve 20 A bypass circuit 21 is connected between the side branch pipes 15, and a bypass circuit 21 is connected between the side branch pipes 15. A pressure control valve 22 using a throttle valve or the like that can variably adjust the pressure is connected to. this place In this case, the pressure setting value of the pressure control valve 22 is set based on the pressure on the heat pipe 2... side. However, desirably, the pressure is set to be approximately the same as the pressure on the heat pipe 2 side. three-way switching valve Reference numeral 16 is an electric type, and switching control is performed by the temperature control device 1 according to the present invention.

[0015] On the other hand, the temperature control device 1 includes a control device main body 6 that has a built-in microcomputer, etc. In addition, a room temperature sensor 4 that detects indoor temperature and a floor temperature sensor 4 that detects floor surface temperature are installed. A sensor 5 is provided. In addition, as shown in FIG. 2, the control device main body 6 is It is built into an attachable casing 25. The front of the casing 25 has operation buttons and a table. The operation panel 25s is configured as an operation panel 25s equipped with a display section, etc., and the operation panel 25s allows indoor It is possible to set the set temperature Ts for the temperature and the upper limit temperature Tu for the floor temperature. The detected indoor temperature, etc. is displayed.

[0016] On the other hand, the room temperature sensor 4 is installed inside or outside the casing 25, and The temperature sensor 5 is attached to the top surface of the self-leveling material L, and is connected to the control device via the cord 26. connection to the main body 6. In addition, in FIG. 1, 27 and 28 are supply side branch pipes 14. , shows the air vents provided in the return side branch pipe 15, respectively.

[0017] Next, regarding the overall operation of the floor heating system including the temperature control device 1 according to the present invention. This will be explained with reference to FIGS. 1 to 3.

[0018] First, the setting for the indoor temperature is performed using the operation panel 25s in the control device main body 6. In addition to setting the temperature Ts (for example, 25°C), the upper limit temperature Tu for the floor surface temperature is set. (for example, 50°C). On the other hand, the heat medium supply source 3 is heated by the boiler. The heated heat transfer liquid is supplied to the supply line 11 by a pump. In addition, the set temperature T s and the upper limit temperature Tu have a predetermined differential that can be variably adjusted.

[0019] In addition, the room temperature and floor temperature are detected by the room temperature sensor 4 and the floor temperature sensor 5. Ru. In this case, if the indoor temperature is below 25℃ (differential), the control The main unit 6 controls the three-way switching valve 16 to open the heat pipe 2 side port and bypass the bypass. Close the switch circuit 21 side port. As a result, the heat supplied from the supply line 11 The medium liquid flows into the heat pipes 2 through the three-way switching valve 16, and enters the heating state (step Steps 31, 32, 33, 34, 35).

[0020] On the other hand, when the indoor temperature exceeds 25℃ (differential), the control device main The body 6 switches and controls the three-way switching valve 16, closes the heat pipe 2 side port, and opens the bypass circuit. Open the road 21 side port. As a result, the heat medium liquid is supplied to the heat pipe 2 side. is stopped, and the heat transfer liquid flows to the bypass circuit 21 via the three-way switching valve 16 (step Steps 35, 36). Note that the pressure in the bypass circuit 21 is the same as that of the heat pipe 2... Since the pressure is set to almost the same as that of the side, the overall hydraulic pressure in the supply line 11 fluctuates. Stable operation of the boiler and pump and stable temperature control are achieved without any problems.

[0021] In addition, even though the indoor temperature is below 25°C, the floor temperature sensor 5 detects If the floor surface temperature exceeds 50℃ (differential), the controller body 6 controls the three-way switching valve 16 to stop the supply of heat medium liquid to the heat pipe 2 side. , the heat transfer liquid flows into the bypass circuit 21 via the three-way switching valve 16 (step 31, 32, 36). In this case, the floor temperature is below 50℃ (differential). , the three-way switching valve 16 switches again, and the heat transfer liquid flows to the heat pipe 2 side. Supplied. In this way, the floor temperature is controlled with priority over the indoor temperature, and the floor temperature Excessive rise in temperature is prevented.

[0022] Although the embodiments have been described in detail above, the present invention is not limited to these embodiments. It does not represent the gist of the invention in terms of detailed configuration, shape, quantity, materials, etc. It can be changed arbitrarily without deviation.

[0023]

[Effect of the idea]

In this way, the temperature control device for the floor heating system according to the present invention detects the indoor temperature. A room temperature sensor that detects the temperature of the floor, a floor temperature sensor that detects the floor surface temperature, and a device that presets the indoor temperature. Indoor temperature control function that controls the temperature to a constant temperature and a preset upper limit for the floor temperature Equipped with a floor temperature control function that gives priority to controlling the indoor temperature so that the temperature is below the indoor temperature. It is equipped with a control device that controls the indoor temperature and floor temperature at the same time. This reduces the excessive rise in floor temperature, provides comfortable floor heating, and further protects the floor. It has the remarkable effect of being able to

[Brief explanation of drawings]

FIG. 1 is a circuit diagram of a floor heating system including a temperature control device according to the present invention;

[Figure 2] External configuration diagram of the temperature control device,

FIG. 3 is a flowchart showing the operation of the temperature control device;

[Explanation of symbols]

1 Temperature control device 2 heat pipe 3 Heat medium supply source 4 Room temperature sensor 5 Floor temperature sensor 6 Control device body F floor

Claims (1)

[Scope of utility model registration request] 1. A room temperature sensor that detects indoor temperature in a temperature control device for a floor heating system that performs heating by circulating a heated heat medium liquid supplied from a heat medium supply source through a heat pipe laid on the floor. , a floor temperature sensor that detects the floor temperature, an indoor temperature control function that controls the indoor temperature to a preset temperature, and a control function that controls the indoor temperature so that the floor temperature is below the preset upper limit temperature. 1. A temperature control device for a floor heating system, comprising a control device main body having a floor surface temperature control function that controls temperature with priority.