JPS6034008B2 - Hot water temperature control device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a hot water temperature control device that can economically ensure hot water at the required temperature in accordance with the actual hot water usage conditions.

For example, as shown in Figure 1, a conventional hot water temperature control device has a temperature-sensing sensor and an opening inside the heat storage tank (the sensor is installed at a higher position than the sensor opening). Both sensei tried to use their mouths differently.

2 is a boiler, which is a heating device that guides the cold water in the heat storage tank C to the inside and raises the temperature of the water, and returns the obtained high-temperature water back into the heat storage tank C. Ho is a hot water storage line guaranteed by Sensai, and when the hot water in the heat storage tank Ha is used, and the temperature of the hot water in the hot water storage line falls below the temperature determined by Sensai, Boiler 2 is activated and the required temperature is restored again. The temperature is raised to . There is also a hot water storage line guaranteed by a similar sensor port. Specifically, Sensai and mouth were used as follows.

That is, the sensor is for summer use, and the sensor opening is for winter use. In the summer, when the amount of hot water used is small, the amount of hot water guaranteed by the hot water storage line is sufficient; in the winter, when the amount of hot water used is large, the amount of hot water guaranteed by the storage line is required. However, although providing a sensor and an opening in the heat storage tank as described above has an advantage as a seasonal storage system, it has a major drawback as a hot water storage system that can be used on a daily basis.

That is, in the winter, for example, hot water is always stored in the hot water storage line, and even if a small amount of hot water is used, the sensor port immediately detects it and activates the boiler. In this way, the fact that Boiler 2 operates even when using a small amount of hot water may shorten the life of Boilani.
This causes inconveniences such as unnecessary heat radiation inside the heat storage tank. The present invention has been made in view of the above-mentioned circumstances, and its purpose is to provide a hot water overflow control device that can economically guarantee the necessary amount of hot water at the required temperature in accordance with the daily use of hot water. Our goal is to provide the following.

The present invention will be described in detail below based on the drawings shown as examples. In FIG. 2, 1 is an open type heat storage tank.

A temperature sensor A and a temperature sensor B below the sensor A are installed inside the heat storage tank 1, respectively. 2 is a storage line guaranteed by sensor A, and 3 is a hot water storage line guaranteed by sensor B.

4 is a boiler, 5 is a water tank, and 6 is a pump. Boiler 4 is activated only by sensor A, and its shutdown is effected only by sensor B. Specifically, as shown in Fig. 3, sensor A and sensor B are switched by a relay, and when sensor A activates the boiler 4, the circuit including sensor B is switched, and sensor B activates the boiler 4. is now stopped. In other words, sensor A is an ON-only sensor, and sensor B is an OFF-only sensor. Next, FIG. 4 is a graph showing the daily amount of hot water used over time. As is clear from this graph, a large amount of hot water is consumed when taking a bath, and at other times only a small amount of hot water (less than 20~30 mm) is consumed. The operation of the present invention corresponding to the above-mentioned usage situation will be explained with reference to FIG.

It is now assumed that hot water is stored in the heat storage tank 1 at an appropriate temperature up to the damage storage line 3.

It goes without saying that the upper part of the heat storage tank 1 has a higher temperature than the lower part. As hot water is consumed for washing in the morning, etc., water is supplied from the water supply tank 5 and the storage moat line rises. (At this stage, the hot water storage line has not yet reached storage line 2), and the hot water storage line does not reach storage line 2 until hot water is supplied for washing, lunch, dinner, etc. Then, the boiler 4 is activated by an electric signal from the sensor A, and the hot water in the heat storage tank 1 overflows, and the storage line is lowered to reach the hot water storage line 3, and the boiler 4 is stopped. In this state, the heat storage tank 1 has up to the hot water storage line 3 (that is, a large amount).
High-temperature water is stored and used to supply bath water. When the hot water is used to supply hot water to the bath, it is stored again up to the storage line 3. As is clear from the above, boiler 4
is not activated except when a large amount of hot water in the heat storage tank 1 is used (for example, when hot water is supplied to a bath). Note that the storage moat line 2 guaranteed by the sensor A guarantees an amount of hot water sufficient to cover the amount of hot water used for purposes other than bath water supply, for example, and the storage moat line 3 guarantees an amount of hot water sufficient to cover the amount of hot water used for purposes other than bath water supply, for example. ensure that In the heat storage tank as described above, a temperature sensor A and an overflow sensor B are installed below the sensor A, and a heating device such as a boiler is connected to the heat storage tank, and the heating device is controlled only by the sensor A. The feature is that the boiler is stopped only by the activated sensor B, so it is possible to control the overflow of hot water in the heat storage tank according to the daily usage conditions, and the boiler can be operated economically and efficiently. It has the advantage of being able to

[Brief explanation of the drawing]

Fig. 1 is a schematic diagram showing a conventional example, Fig. 2 is a schematic diagram showing an embodiment, Fig. 3 is a circuit diagram, and Fig. 4 is a graph showing the hot water supply situation for one day. 1... Heat storage tank, 2, 3... Hot water storage line, 4... Boiler, A, B... Sensor. Figure 1 Figure 2 Figure 3 Figure 4

Claims (1)

[Claims] 1 A temperature sensor A is installed in the heat storage tank, and a temperature sensor B is installed below the sensor A, and a heating device such as a boiler is connected to the heat storage tank, and the heating device is operated only by the sensor A. A hot water temperature control device characterized in that the water temperature is stopped only by a sensor B.