JPS5919247B2 - heating device - Google Patents

Description

Detailed Description of the Invention The present invention relates to a heating device, and its purpose is to perform floor heating when the temperature of hot water in a heat storage tank is low, and to perform heating using a fan coil unit when the temperature of hot water is high. An object of the present invention is to provide a heating device that can perform automatic switching and effectively use even low-temperature water for heating.

FIG. 1 is a schematic configuration diagram of a conventional heating device that performs heating using hot water obtained by utilizing solar heat, etc. In this conventional example, hot water is heated by a solar heat collector 4 and stored in a heat storage tank 1. The heated water is circulated and distributed by a circulation pump 8 via a piping 5 to a radiator 2 which is a so-called fan coil unit arranged in the room A to perform heating.

However, when the hot water in the heat storage tank 1 drops below 30°C (depending on the room temperature, but in general), the person in the room A feels rather cold even if the air speed from the fan 9 of the radiator 2 is used to heat the room. Because of the discomfort, there was a drawback that even low-temperature water could not be used effectively for heating.

In the figure, 6 is a pump for supplying water to the solar collector 4.

FIG. 2 is a schematic diagram of a conventional example of so-called floor heating. In this conventional example, a floor heater 3 such as a floor panel heater is installed on the floor of the room A. Warm water was circulated and distributed to the vessel 3 from the heat transfer tank 1 to the circulation pump 8 for heating.

In this case, hot water can be used up to a relatively low temperature (generally 25° C.), but there is a drawback that at high temperatures, the room temperature rises more slowly than when the radiator 2 is used.

The present invention has been provided in view of the above-mentioned drawbacks.

This will be explained below using examples.

FIG. 3 is a schematic configuration diagram of an embodiment, in which the hot water circulation distribution system is divided into two systems: one to the radiator 2 and the other to the floor heater 3 consisting of a floor panel heater. It consists of a water distribution inlet 7 for each of the radiator 2 and the floor heater 3.
a is connected to the water pipe 12 of the heat storage tank 1 via a solenoid valve 11, and the drain channels 7b of the radiator 2 and the floor heater 3 are connected in common, and furthermore, the heat storage is carried out via the circulation pump 8. It is connected to the water inlet pipe 13 of the tank 1.

Since the piping is arranged in this way, the piping can be saved and only 81 circulation pumps are required.

The solenoid valve 11 is controlled by an electric control signal, and is configured to switch the direction of water distribution to the floor heater 3 or the radiator 2, and the operation of the circulation pump 8 is also controlled by the electric control signal. It has become so.

Reference numeral 14 denotes a controller device that provides electrical control signals to the solenoid valve 11 and the circulation pump 8, which detects the temperature of water in the heat storage tank 1 using a temperature sensor 6 provided in the heat storage tank 1, and uses the detection signal to detect the temperature of the water in the heat storage tank 1. Based on this, an electric control signal is output to the circulation pump 8 or the heat storage tank 1.

When the controller device 14 is operated, the controller device 14 compares the current hot water temperature tw°C in the heat storage tank 1 detected by the temperature sensor 6 with a predetermined temperature ts'C, and w'C is the predetermined temperature ts'
It is determined whether or not C is greater than or equal to C.

Note that the predetermined temperature ts° C. can be set variably.

When the hot water temperature tw'C is high and tw≧ts, the controller device 14 controls the solenoid valve 11 so that the hot water in the heat storage tank 1 can be distributed to the radiator 2 and the distribution of water to the floor heater 3 is stopped.
Outputs an electric control signal to open the valve body.

It also outputs an electric control signal that drives the circulation pump 8 so that the hot water in the heat storage tank 1 circulates through the radiator 2.

The radiator 2 uses a motor M[ to start heating the room by blowing warm air containing heating energy obtained by heat exchange from hot water into the room using a fan 9.

By the way, in the case of tw(ts), the controller device 14 outputs an electric control signal to switch the solenoid valve 11 in the direction of distributing hot water to the floor heater 3 consisting of a floor panel heater, and controls the valve body of the solenoid valve 11. Switch and close.

In this case, hot water forcibly circulated by the circulation pump 8 warms the floor surface of the room A when passing through the piping of the floor heater 3,
So-called floor heating will be used.

In the figure, 16 is a heat insulating material that constitutes the wall portion of the heat storage tank 1.

FIG. 4 shows an example of the arrangement of the floor heating device 3 and the radiator 2 according to an embodiment, and 15 in FIG. 1 indicates heat exchange fins of the radiator 2.

The hot water in the heat storage tank 1 is heated using a solar collector, an electric water heater, or the like.

Further, the solenoid valve 11 may of course be provided within the radiator 2.

The present invention detects the temperature of hot water in the heat storage tank, and if the temperature is higher than a predetermined temperature, the hot water in the heat storage tank is distributed to a radiator installed indoors for heating, so heating starts quickly. Moreover, if the temperature is below a predetermined temperature, the hot water in the heat storage tank is switched and distributed to the floor heater, so even low-temperature hot water can be heated by the floor heater without causing discomfort. This has the effect of making it possible to use hot water efficiently over a wide range and improving thermal efficiency.Furthermore, it is also possible to automatically switch the heating method according to changes in the temperature of the hot water, making it easy to use. play.

[Brief explanation of drawings]

Figures 1 and 2 are schematic diagrams of conventional examples, Figure 3 is a schematic diagram of an embodiment of the present invention, and Figure 4 is a diagram of a radiator and a floor heater according to an embodiment of the present invention. It is a layout configuration diagram, where 1 is a heat storage tank, 2 is a radiator, 3 is a floor heater, A is indoors, tw is water temperature, and ts is a predetermined temperature.

Claims (1)

[Claims] 1. A temperature sensor that detects the temperature of hot water in the heat storage tank, and whether the detected temperature of the temperature sensor is higher than a predetermined temperature,
It discriminates whether the temperature is lower than a predetermined temperature, and if the temperature is above a predetermined temperature, the solenoid valve is switched so that the hot water in the heat storage tank is distributed to the radiator of the fan coil unit installed indoors.If the temperature is lower than a predetermined temperature, the hot water inside the heat storage tank is a controller device that switches the solenoid valve so as to distribute hot water to the floor heater, and circulates hot water between the solenoid valve, the heat storage tank and the radiator, and between the heat storage tank and the floor heater during water distribution. A heating device comprising a circulation pump.