JPS59202351A - Hot water supplying device - Google Patents

Abstract

PURPOSE:To provide a massaging effect when using a shower, by varying the temperature of hot water tapped from a hot water supplying device. CONSTITUTION:The heating value of a heater 7 for a heat exchanger 3 is controlled by a heating controller 6, and a signal from a tapped hot water temperature detector 16 provided at a hot water tapping pipe 4 is inputted into a hot water supply controller 15. The controller 15 is provided with a signal- generating part 18 which varies the tapped hot water temperature with time with a preset temperature as a center, and a signal-varying part 19 which varies the ratio of occurence of rises and falls of the tapped hot water temperature with reference to the preset temperature. Accordingly, by varying the tapped hot water temperature with time, a massaging effect can be obtained when using the shower, and a pleasant shower can be obtained.

Description

[Detailed Description of the Invention] Industrial Field of Application The present invention relates to hot water temperature control in a water heater. 0 Configuration of conventional example and its problems A hot water heater detects the hot water temperature and automatically controls the combustion amount. Although it is already known that water temperature can be stabilized, hot water has only been supplied at a constant temperature during steady-state conditions. Therefore, if a person prefers a certain amount of stimulation, such as a shower, they will quickly become accustomed to the constant stimulation. Especially when trying to obtain the pine surge effect by taking a shower, the effect wears off quickly.

OBJECTS OF THE INVENTION The present invention changes the hot water temperature of a water heater over time to provide a pine surge effect when using a shower.

Structure of the Invention In order to achieve this object, the present invention detects the outlet temperature of the heat exchanger heated by the heating device with a temperature detector, controls the heating controller to adjust the heating amount, and sets the outlet temperature. It changes the temperature mainly over time, and at the same time changes the rate at which the hot water temperature rises and falls relative to the set temperature.

Description of examples An embodiment of the present invention will be described with reference to the accompanying drawings.

In FIG. 1, 1 is a water flow rate control word, and water enters from the inflow path 2 and is supplied from the heat exchanger S to the outlet pipe 4 to the outside. Fuel flows in from the fuel supply path 5 and is supplied to the heating device 7 from the heating controller 6, and the combustion heat of the heating device element heats the heat exchanger 3. The heating controller 6 consists of a valve body 8 and a casing 9, has a valve hole 1o in the valve body 8, the valve body 11 changes integrally with a diaphragm 12, and the diaphragm 12 is connected to a coil 13.
is displaced by a plunger 14 which is displaced by a current. The pressure receiving areas of the diaphragm 12 and the human body 11 are approximately equal, and the fuel pressure is controlled by balancing the force exerted on the body 11 due to the controlled pressure of the fuel with the electromagnetic force of the plunger 14 and the coil 13. Reference numeral 16 denotes a hot water supply controller, which inputs a signal from a hot water temperature detector 16 provided in the hot water outlet pipe 4 and outputs it to the coil 13 of the heating controller 6.

In the block diagram of FIG. 2, the hot water supply controller 16 includes a hot water outlet temperature setting section 17, a signal generating section 18, a signal section 19, and a heating control section 2o.
By calculating the deviation of the hot water outlet temperature detector 16 and performing known PID control, the heating controller 6 is driven and the heating amount of the heating device 7 is adjusted, thereby bringing the hot water outlet temperature of the heat exchanger 3 close to the set temperature.

Attach. The signal generating section 18 receives the signal from the signal variable section 19 and adds the signal from the hot water temperature setting section 17 to give a temporal change to the temperature setting. The signal variable section 19 varies the generation time ratio of the positive signal and the negative signal generated from the signal generating section 18, and changes the ratio arbitrarily or according to the elapsed time of hot water supply.

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.The hot water temperature is detected by the hot water outlet temperature detector 16, and the hot water outlet temperature setting unit 17 The power supply to the coil 13 of the heating controller 6 is adjusted and the valve body 11 is displaced via the plunger 14 so that the hot water temperature becomes equal to the setting.

The signal generated from the signal generating section 18 is sent out while changing the generation time ratio of the plus signal and the minus signal according to the signal from the signal variable section 19, and this signal is added to the signal from the hot water temperature setting section 17.

Therefore, the hot water temperature setting changes over time, and as mentioned above, the hot water temperature is controlled to be equal to the hot water temperature setting.
As the hot water temperature changes over time as shown in Figure 3, when used in the shower it provides a pleasant stimulation and has a pine surge effect. Furthermore, by increasing the proportion of time during which the hot water temperature is lower than the set temperature as time elapses, the hot water caused by the shower can be eliminated and a more comfortable shower can be obtained.

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

Effects of the Invention As described above, the present invention uses a temperature detector to detect the outlet temperature of the heat exchanger heated by the heating device, and adjusts the heating device by the heating controller so that the outlet temperature is equal to the temperature setting. ,
The signal generating section changes the hot water temperature over time around the set temperature, and the signal variable section changes the rate at which the hot water temperature appears above and below. By changing the hot water temperature over time, a pine surge effect is created when using the shower. You can have a comfortable shower. Furthermore, since the ratio of the hot water output temperature relative to the set temperature can be varied, adjustments can be made in response to transient responses of the human body to dust, etc., resulting in a comfortable shower that is more in tune with human sensations.

[Brief explanation of drawings]

FIG. 1 is a configuration diagram showing an embodiment of the hot water supply device of the present invention, FIG. 2 is a control block diagram of the same device, and FIG. 3 is a graph showing changes in hot water temperature of the same device. 3...Heat exchanger, 6...Heating controller, a.
...Heating device, 15...Hot water controller, 16...
... Hot water temperature detector, 18 ... Signal generation section, 19 ... Signal variable section 0

Claims (2)

[Claims] (1) A heat exchanger, a heating device for the heat exchanger, a heating control gR that controls the heating amount of the heating device, a hot water temperature detector, and a hot water temperature detector that changes the hot water temperature over time around a set temperature. A hot water supply device comprising a hot water supply controller including a signal generating section and a signal variable section that changes the appearance ratio of hot water temperature above and below with respect to a set temperature. (2) The water heater according to claim 1, wherein the signal variable section is configured to arbitrarily vary the rate at which the hot water temperature appears above and below. (S) The water heater according to claim 1, wherein the signal variable section is configured to temporally change the rate at which the hot water temperature appears above and below.