JPH0138224B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to hot water temperature control in a water heater.

Conventional configuration and its problems It is already known that a hot water heater periodically varies the temperature setting value for a certain period of time to obtain a pine surge effect when using a shower, but because it is repeated periodically, it is easy to get used to it. There was a drawback that the pine surge effect was weakened.

Purpose of the Invention The present invention changes the hot water temperature of a hot water heater over time to create a pine surge effect when using a shower.

Structure of the Invention In order to achieve this object, the hot water supply control device of the present invention includes a temperature controller that controls the hot water temperature based on the deviation between the hot water temperature setting section and the hot water temperature detector, and a temperature controller that stores a temporally irregular signal. and a signal generating section that receives the signal from the signal storage section and changes the temperature setting of the outlet hot water temperature setting section within a predetermined temperature range, and changes the outlet hot water temperature irregularly over time. be.

DESCRIPTION OF EMBODIMENTS An embodiment of the present invention will be described with reference to the accompanying drawings. In FIG. 1, reference numeral 1 denotes a water flow controller, and water enters through an inlet passage 2 and is supplied to the outside through a heat exchanger 3 and an outlet pipe 4. The fuel is supplied from the inflow heating controller 6 to the heating device 7 through the fuel supply path 5, and the combustion heat of the heating device 7 heats the heat exchanger 3. The temperature controller 6 consists of a valve body 8 and a casing 9, has a valve hole 10 in the valve body 8, a valve body 11 is displaced integrally with a diaphragm 12, and the diaphragm 12 is It is displaced by a plunger 14 which is displaced by the current in the coil 13. The pressure-receiving areas of the diaphragm 12 and the valve body 11 are approximately equal, and the fuel pressure is controlled by balancing the force of the controlled fuel pressure on the valve body 11 with the electromagnetic force of the plunger 14 and the coil 13. Ru. 1
A hot water supply controller 5 inputs a signal from a hot water temperature detector 16 provided in the hot water pipe 4 and outputs the signal to the coil 13 of the temperature controller 6.

In the block diagram of FIG.
consists of a hot water outlet temperature setting section 17, a signal generating section 18, a signal storage section 19, a temperature controller 20, and a switch 21, and the temperature control section 20 calculates the deviation between the hot water outlet temperature setting section 17 and the hot water outlet temperature detector 16, PID of
Control is performed to drive the temperature controller 6, and the heating device 7
By adjusting the heating amount of the heat exchanger 3, the temperature of hot water discharged from the heat exchanger 3 is kept constant. The signal generating section 18 receives a signal from the signal storage section 19 that generates a temporally irregular signal, and adds the signal to the signal from the hot water temperature setting section 17 to give a temporal change to the temperature setting. The switch 21 turns the signal generator 18 on and off.

Next, the operation will be explained. When the power is turned on and water supply starts, the heating device 7 starts combustion and heats the heat exchanger 3, and the hot water temperature rises, and the hot water temperature is detected by the outlet hot water temperature detector 16. The output temperature is compared with the signal from the hot water temperature setting unit 17, and the current to the coil 13 of the temperature controller 6 is adjusted so that the hot water temperature becomes equal to the setting.
Displace. After the water temperature becomes equal to the set temperature and becomes stable, when the switch 18 is closed, a signal is sent out from the signal storage section 19, and this signal is amplified by the signal generator 18 and added to the signal from the hot water temperature setting section 17. Ru. Signals that change irregularly over time are generated one after another from the signal storage unit 19, so the hot water temperature setting changes over time, and as described above, the hot water temperature is controlled to be equal to the hot water temperature setting. As shown in Figure 3, the hot water temperature changes irregularly over time, so if you use it for a shower, the pleasant stimulation will last forever. The degree of change in hot water temperature is preset by the signal generator 18 so that the change is within a predetermined temperature range to avoid danger. When the switch 21 is opened, the change in hot water temperature stops and normal hot water supply at a constant hot water temperature is resumed.

In this embodiment, a fuel control valve is shown as the temperature controller 6, but if the heating device is an electric heater, a power regulator may be used.

Effects of the Invention As described above, the hot water supply control device of the present invention includes a temperature controller that controls the hot water temperature based on the deviation between the hot water temperature setting unit and the hot water temperature detector, and a signal memory that stores temporally irregular signals. and a signal generating section that receives the signal from the signal storage section and changes the temperature setting of the hot water temperature setting section within a predetermined temperature range, and the hot water temperature is changed irregularly over time, resulting in the following effects. There is.

(1) Irregular water temperature changes occur one after another, and there is no getting used to the periodic stimulation, so if you use it for a shower, the pleasant pine surge effect will last forever. Furthermore, it would be even more effective if, for example, the scale of a famous classical piece of music and the water temperature are stored in association with each other in the signal storage section.

(2) Prevents the risk of burns caused by hot water gushing out.

[Brief explanation of drawings]

Fig. 1 is a configuration diagram of an embodiment of the hot water supply control device of the present invention, Fig. 2 is a control block diagram showing the embodiment of the invention, and Fig. 3 is a graph showing changes in hot water temperature in the embodiment of the invention. be. 3... Heat exchanger, 6... Temperature controller, 7... Heating device, 15... Hot water supply controller, 16... Hot water temperature setting unit,
17... Hot water temperature setting section, 18... Signal generation section, 19
...Signal storage unit, 20...Temperature control unit, 21...Switch.

Claims (1)

[Scope of Claims] 1. A hot water outlet temperature setting unit, a hot water outlet temperature detector, a temperature controller that controls the hot water supply temperature based on a deviation between the hot water outlet temperature setting unit and the outlet hot water temperature detector, and a temporally irregular signal. A hot water supply control device comprising: a signal storage section that stores a signal; and a signal generation section that receives a signal from the signal storage section and changes the temperature setting of the hot water temperature setting section within a predetermined temperature range. 2. The hot water supply control device according to claim 1, wherein the hot water supply controller includes a switch that turns on and off the signal generating section. 3. The hot water supply control device according to claim 1, wherein the hot water temperature setting by the signal generating section is smaller than a predetermined temperature range.