JPH03164652A - Hot-water supply apparatus - Google Patents

Abstract

PURPOSE:To obtain a massage effect at the time of using a shower by controlling an output hot water temperature in response to a signal of a temperature detector, continuously sending a signal for varying the drive unit of a water amount controller for controlling a hot water amount with time, and arbitrarily varying the amplitude and time width of the signal. CONSTITUTION:When a power source is closed to start water supply, combustion of a heater 20 is started, and hot water temperature is raised. A deviation of output hot water temperature from set output hot water temperature is calculated by a temperature controller 23 from signals of an output hot water temperature setter 22 and a temperature detector 12, a temperature controller 19 is controlled, and an output hot water temperature is set equal to the set temperature. After the hot water temperature is stabilized, if a switch 24 is closed, a period signal is sent from a signal generator 26, transmitted to a driver 17 to normally or reversely rotate a water amount regulating valve 10. The throttle of a valve hole 10a is varied by rotation of the valve 10, differential pressure of the hole 10a is acted on a diaphragm 7 to drive a control valve 4, and a water amount is periodically varied. A signal varying unit 25 can vary the period and amplitude of the period signal of the generator 26. Thus, since the water amount is periodically varied, if it is used as a shower, a massage effect is obtained as a comfortable stimulus.

Description

[Detailed description of the invention] Industrial applications The present invention relates to water flow control in a water heater.

The structure of the conventional example and its problems are as follows: hot water is only supplied at a constant temperature and in a constant amount of water.

OBJECTS OF THE INVENTION The present invention changes the amount of water in a water heater over time to create a pine surge effect when using a shower.

Structure of the Invention To achieve this object, the present invention provides a temperature detector that detects the temperature of hot water, a temperature controller that controls the temperature of hot water according to a signal from the temperature sensor, and a water flow controller that controls the amount of hot water supplied. A hot water supply controller comprising a driving device, a signal generating section that continuously sends out a temporally changing signal to drive the driving device, and a signal variable section that arbitrarily varies the magnitude and time width of the signal. It is something.

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

In Fig. 1, ■ is a water flow controller, in which water enters the valve chamber 3 from the inflow path 2, and a diaphragm that operates together with the control valve 4 and the control hole 5 forms a secondary chamber 8 on the other side. A control spring 9 is provided in the secondary chamber 8 and urges it toward the primary chamber 6. - The water that has flowed into the next chamber 6 is the valve hole 10a of the water flow control valve 10.
is supplied to the heat exchanger 11 and heated, and the temperature sensor 1
The hot water is supplied to the outlet pipe 13 having the hot water. The downstream side of the water flow control valve 10 is led to the secondary chamber 8 through a communication 7L14. The water flow control valve 10 is a drive device 1 consisting of a gear 15 and a motor 16.
7. The rotation of the water flow control valve 10 changes the position of the valve hole 10a, and the relationship between the pressure difference and the amount of water passing through the valve hole 10a changes.The pressure difference acts on the diaphragm 7 and drives the control valve 4.

On the other hand, the gas passes through the temperature controller 19 from the gas supply path 18 and is combusted in the heating device 20 to heat the heat exchanger 11. 2
Reference numeral 1 denotes a hot water supply controller which inputs a signal from a temperature detector 12 and outputs it to a drive device 17 and a temperature controller 19.

In the block diagram of FIG. 2, the hot water supply controller 21 includes a hot water temperature setting section 22, a temperature control section 23, a switch 24, a signal variable section 25, and a signal generation section 26. To control the hot water temperature, the respective signals from the hot water temperature setting section 22 and the temperature detector 12, which are composed of variable resistors, etc., are calculated by the temperature control section 23, and the well-known pxD! II control temperature controller 19
The hot water temperature of the heat exchanger 11 is kept constant by controlling the amount of heat generated by the heating device 20. Signal generator 2
Reference numeral 6 generates a signal with a constant period, and in response to the signal, the drive device 17 rotates the water amount control valve 10 of the water amount controller 1 to change the amount of water.

The signal variable section 25 is for varying the period and amplitude of the periodic signal generated by the signal generating section 26, and the switch 24 is for turning on/off the signal from the signal generating section 26.

Next, the operation will be explained. When the power is turned on and water flow starts, combustion in the heating device 20 starts, and after a slight delay, the room temperature rises. The deviation of the hot water outlet temperature with respect to the hot water outlet temperature setting is calculated by the respective signals of the hot water outlet temperature setting section 22 and the temperature detector 12 in the temperature control section 23, which controls the temperature controller 19 to make the outlet hot water temperature equal to the set temperature.

When the user closes the switch 24 after the water temperature has stabilized, a periodic signal is sent from the signal generator 26 and transmitted to the drive device 17 to rotate the water flow control valve 10 in the forward or reverse direction. The rotation of the water flow control valve 10 changes the restriction of the valve hole 10a, and the differential pressure across the valve hole 10a acts on the diaphragm 7 to drive the control valve 4, causing periodic changes in the water flow as shown in FIG.
This is done as shown in a). The signal variable unit 25 can change the period and amplitude of the periodic signal of the signal generator 260. Figure 3 □□□) shows the case where the amplitude is reduced;
Figure (C) shows the change in water amount when the cycle is made smaller. The signal variable section 25 can be adjusted externally so that the user can arbitrarily set the period and amplitude. As the amount of water changes periodically,
When used in the shower, it provides a pleasant stimulation and has a pine surge effect. The degree of change in the amount of water is preset by the signal generator 26 so that it is within a predetermined amount of water depending on the heating capacity of the heating device 20. When the switch 24 is opened, the periodic change in the amount of water is stopped and normal hot water supply with a constant amount of water is resumed.

Effects of the Invention As described above, the present invention provides a temperature controller that detects the temperature of hot water and controls the hot water temperature, a water flow controller that controls the amount of hot water supplied, a drive device for this water flow controller, and a drive device for this water flow controller. Equipped with a hot water supply controller consisting of a signal generating section that continuously sends out a signal that changes over time and a signal variable section that arbitrarily varies the magnitude and time width of the signal, it is possible to give a pine surge effect when using a shower. It also allows the user to change the amount of water as desired.

[Brief explanation of the drawing]

FIG. 1 is a configuration diagram showing an embodiment of the water heater of the present invention, FIG. 2 is a control block diagram of the same device, and FIGS.
) and (C) are characteristic diagrams showing changes in water amount of the same device. 12... Temperature detector, 17... Drive device, 19... Temperature controller, 2I... Hot water supply fl controller, 23...・Temperature control section, 25...
...Signal variable section, 26...Signal generation section.

Claims (2)

[Claims] (1) A temperature detector that detects the hot water temperature, a temperature controller that controls the hot water temperature according to a signal from the temperature detector, a water flow controller that controls the amount of hot water supplied, and a drive device for the water flow controller. A water heater comprising a water heater controller comprising a signal generating section that continuously sends a temporally changing signal to the drive device, and a signal variable section that arbitrarily varies the magnitude of the signal. (2) The water heater according to claim 1, wherein the signal variable section arbitrarily varies the time width of the signal from the signal generating section.