JPH03247947A - Hot water supplying system - Google Patents

Abstract

PURPOSE:To enable execution of bathing in a comfortable state in terms of a physical feeling by a method wherein the air temperature of at least the one of the opening air and the interior of a bath room is detected, and the temperature of hot water to a bath tub is changed in response to a detecting temperature. CONSTITUTION:In filling of a bath tub 15 with hot water, by setting the temperature and a quantity of a feed hot water temperature and hot water quantity setter 30 and depressing a hot water filling button, a solenoid valve 20 is opened, and hot water heat-exchanged through combustion of a burner 23 with the aid of a heat exchanger 17 for feed hot water is fed through connection pipes 21 and 22 to a bath tub 15. In this case, hot water temperature is corrected by means of a signal from a temperature detector 32 to detect an open air temperature to the hot water. Since when an air temperature is low, the surface temperature of a human body is also low, water temperature is changed according to a change in an air temperature. In this way, temperature in the bath tub is set to an optimum value at which neither hot nor cold feeling is produced during bathing and therefore, comfortable bathing can take place.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a water heater that automatically fills a household bathtub with hot water.

Conventional technology Conventionally, this type of technology is shown in FIGS. 5 and 6.

That is, in FIG. 5, 1 is a bathtub, and 2 is a water heater. Inside the water heater 2, a hot water supply heat exchanger 3 and a bath heat exchanger 4 are connected via a solenoid valve 6, which is an on-off valve 5. What is 2
They are connected by a real connecting pipe 6. Further, 7 and 8 are gas burners of the heating device 9, and 10 and 11 are gas control valves of a heating controller 12 that controls the combustion amount of the heating device 9. 13 is a heating control section that controls the heating controller 12; This heating control section 13 is connected to a hot water temperature and hot water amount setting device 14.

To explain the operation of the conventional water heater configured in this keyaki, to fill the bathtub l with hot water, set the hot water temperature and hot water amount setting device 14 to the desired temperature and amount (for example, 42°C 1200°C), and then fill the bathtub l with hot water. When a button (not shown) is pressed, the solenoid valve 6 opens and hot water starts to be supplied to the bathtub l.At this time, heat is exchanged by the hot water supply heat exchanger 3 and hot water is supplied. When the set value of the hot water amount setting device 14 is reached, the electromagnetic valve 6 is closed and filling of hot water is completed.

Problems to be Solved by the Invention However, in conventional methods, there are many cases in which the hot water supply temperature is set constant throughout the season, and from the perspective of a bather, there is a problem in terms of usability, such as a lack of convenience. there were. In other words, when the body is filled with hot water at a constant temperature of 40°C, in the summer when the air temperature is high, the body surface temperature is high enough to comfortably take a bath, but in the winter, when the outside temperature drops even if the bath is filled at the same temperature. When taking a bath, the surface temperature of the body and the room temperature are low, so when taking a bath, it feels hot and you have to pour water into the bathtub and lower the temperature before taking a bath, which takes time and effort. was.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a hot water supply device that allows a person to take a bath in a thermally comfortable state regardless of the season without filling the bathtub with water.

Means for Solving the Problems In order to achieve the above object, the present invention provides a bathtub, a water heater that supplies hot water to the bathtub, a connecting pipe that connects the water heater and the bathtub, and a pipe that connects at least one of the outside air and the inside of the bathroom. It consists of a temperature detector that detects air temperature, and the temperature of hot water supplied to the bathtub is changed in response to the temperature detected by the temperature detector.

Function: With the above configuration, the hot water supply device of the present invention lowers the hot water filling temperature when the outside temperature is low, thereby lowering the hot water temperature in the bathtub. Also, since the surface temperature of the body is low, the bather can feel comfortable while taking a bath, and there is no need to adjust the temperature of the hot water in the bathtub, which is the case with traditional birch bathtubs.

EXAMPLE Hereinafter, an example of the present invention will be described based on the accompanying drawings. In FIGS. 1 to 3, 15 is a bathtub, and 16 is a water heater. Inside this hot water supply 1!116, a hot water supply heat exchanger 17 and a bath heat exchanger 18 are connected via a solenoid valve 2C, which is an on-off valve 19, and the bath heat exchanger 18 and the bathtub 15 through two connecting pipes 21 and 22. Further, 23 and 24 are gas burners of the heating device 25, and 26 and 27 are gas control valves of the heating controller 2 which control the combustion amount of the heating device 25. 29 is a heating control section that controls the heating controller 28. Connected to this heating control section 29 are a hot water temperature and hot water amount setting device 30 and a temperature detector 32 which is an air temperature detection section 31 and detects the air temperature. The heating control section 29 has a hot water temperature correction section 33 that controls the heating controller 28 based on the signal from the temperature detector 32. The hot water temperature correction section 33 corrects the hot water temperature as shown in FIG.

That is, if the air temperature is low, the hot water outlet temperature is lowered, and if the air temperature is high, the hot water outlet temperature is increased.

Next, the operation of this embodiment will be explained with reference to FIGS. 1 to 3. In order to fill the bathtub 15 with hot water, the temperature and amount of hot water set by the hot water temperature and hot water amount setting device 30 (for example, 42° C.
001) and press the hot water filling button (not shown), the electromagnetic valve 20 opens, and the hot water heat exchanged in the hot water supply heat exchanger 17 by combustion in the burner 23 passes through the connecting pipes 21 and 22 and flows into the bathtub 15. Hot water is supplied to The hot water supply temperature at this time is corrected by the heating control unit 29 and the hot water is discharged. That is, when the hot water filling button (not shown) is pressed, the hot water temperature is corrected based on the signal from the temperature detector 32 that detects the outside air temperature, and the hot water is dispensed. The corrected temperature is, for example, as shown in Figure 2, when the outside air temperature is O'C.
In this case, hot water is supplied at 40°C, and when the outside temperature is 20°C, it is corrected to 43°C.

In this embodiment, the outside air temperature is detected and the hot water supply temperature is lowered when the outside air temperature is low, so it is possible to accurately grasp not only seasonal temperature changes but also daily temperature changes, making it comfortable to take a bath when you return from going out. It is possible to take a bath.

Another embodiment of the present invention will now be described with reference to FIG. 4, in which a temperature detector 34 is provided in a bathroom 36 in which a bathtub 35 is placed. With this configuration, it is not possible to sensitively grasp changes in outside temperature, but it has the effect of being able to control the temperature so that people who live in the house for a long time can enjoy a comfortable bathing experience. There is.

Effects of the Invention As described above, the present invention provides a bathtub, a water heater that supplies hot water to the bathtub, a connecting pipe that connects the water heater and the bathtub, and a temperature detection device that detects the temperature of at least one of the outside air and the air inside the bathroom. By changing the temperature of hot water supplied to the bathtub in accordance with the temperature detected by the temperature detector, the following effects are achieved.

1) When the air temperature is low, the surface temperature of the body (especially the hands and feet) is also low, so by changing the hot water temperature according to changes in the air temperature, the temperature inside the bathtub can be adjusted to the optimal temperature so that you do not feel hot or cold when taking a bath. You can set the temperature and enjoy a comfortable bath.

2) By detecting air temperature, it is easier to predict the surface temperature of the body than, for example, by detecting water temperature, and the hot water temperature can be changed more accurately.

[Brief explanation of drawings]

Fig. 1 is a sectional view of a hot water supply device showing an embodiment of the present invention, Fig. 2 is a temperature characteristic diagram of the hot water outlet temperature correction section of the same device, Fig. 3 is a control flow diagram of the same device, and Fig. 4 is a diagram of the present invention. FIG. 5 is a cross-sectional view of the water heater in another embodiment of the present invention, FIG. 5 is a cross-sectional view of the water heater in the conventional example, and FIG. 6 is a control flowchart in the conventional example. 15...Bathtub, 16...Water heater, 21
．． 22... Connection pipe, 32... Temperature detector.

Claims (2)

[Claims] (1) Consisting of a bathtub, a water heater that supplies hot water to the bathtub, a connecting pipe that connects the water heater and the bathtub, and a temperature detector that detects the temperature of at least one of the outside air and the air inside the bathroom, and the temperature detector A hot water supply device that changes the temperature of hot water supplied to the bathtub in accordance with the temperature detected by the bathtub. (2) The hot water supply device according to claim 1, wherein the hot water temperature is lowered as the temperature detected by the temperature sensor becomes lower.