JPH0372904B2 - - Google Patents

Description

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

Configuration of conventional example and its problems The hot water supply control of conventional water heaters is to guarantee the hot water temperature, and during normal use, only hot water is supplied at a constant temperature and a constant amount of water. Therefore, if a certain amount of stimulation, such as a shower, is preferred, one will quickly become accustomed to the constant stimulation, and especially if one is trying to obtain the pine surge effect through a shower, the effect will quickly wear off. Ta.

Purpose of the Invention The present invention provides a pine surge effect when using a shower by temporally changing the hot water temperature and water volume of a water heater.

Composition of the Invention In order to achieve this object, the hot water supply device of the present invention includes a hot water temperature detector that detects hot water temperature, a temperature controller that is controlled according to a signal from the hot water temperature detector, and a temperature controller that controls the amount of hot water supplied. A water flow controller, a drive device for the water flow controller, a signal generation unit that generates a signal whose magnitude changes continuously over time, and transmission of this signal to the temperature control and drive device, respectively. It is equipped with a hot water supply controller consisting of a switch section, and selectively changes the hot water temperature and the amount of hot water supplied continuously over time.

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

In FIG. 1, reference numeral 1 denotes a water flow controller, and water enters a valve chamber 3 from an inflow path 2 and flows into a primary chamber 6 through a gap between a control valve 4 and a control hole 5. Reference numeral 7 denotes a diaphragm (pressure-receiving body) that operates together with the control valve, and the other side forms a secondary chamber 8. A control spring 9 is attached to the secondary chamber 8 and urges it toward the primary chamber 6. Primary room 6
The water that has flowed into the water is supplied to the heat exchanger 12 through the valve hole 11 of the water flow control valve 10, heated, and then supplied to the hot water outlet pipe 13. The downstream side of the water flow control valve 10 is the communication hole 1
4 leads to the secondary room 8. Water flow control valve 10
is a drive device 17 consisting of a gear 15 and a motor 16.
driven by. Rotation of the water flow control valve 10 changes the position of the valve hole 11, and the relationship between the differential pressure and the amount of water passing through the valve hole 11 changes, and the differential pressure acts on the diaphragm 7 to drive the control valve 4.

On the other hand, fuel flows in through the fuel supply path 19 and is supplied from the temperature controller 20 to the heating device 21, which heats the heat exchanger 12. Temperature controller 2
0 consists of a valve body 22 and a casing 23, the valve body 22 has a control valve hole 24, the valve body 25 is displaced integrally with a diaphragm 26, and the diaphragm 26 is a plunger 2 that is displaced by the current of a coil 27.
8. The pressure-receiving areas of the diaphragm 26 and the valve body 25 are approximately equal, and the controlled pressure of the fuel is equal to the force applied to the valve body 25 and the plunger 2.
The fuel pressure is controlled by balancing the electromagnetic forces of the coil 27 and the electromagnetic force of the coil 27. A hot water supply controller 29 inputs a signal from a hot water temperature detector 30 provided in the hot water pipe 13 and outputs it to the coil 27 of the temperature controller 20 .

In the block diagram of FIG.
is composed of a hot water tap temperature setting section 31, a temperature control section 32, a signal generation section 33, and a switch section 34. To control the hot water temperature, a temperature controller 32 calculates signals from a hot water temperature setting section 31 and a hot water temperature detector 35, which are composed of variable resistors, etc., and drives the temperature controller 20 by known PID control. , heating device 2
By adjusting the heating amount of heat exchanger 12
Bring the hot water temperature closer to the set temperature. Signal generator 3
3 generates a signal that changes over time, and this signal changes the signal from the hot water temperature setting section 31 over time through a switch 36, and also drives the drive device 17 over time through a switch 37. Then, the water amount control valve 10 of the water amount controller 1 is rotated to change the amount of water.

Next, the operation will be explained. In the figure, when water flow starts, the water that has flowed into the water flow controller 1 flows into the heat exchanger 12, is heated by the heating device 21, and
The hot water is supplied to the outside from the outlet pipe 15. As the water flows, combustion starts in the heating device 21, and the hot water temperature rises, and the hot water temperature is detected by the outlet hot water temperature detector 30.
It is compared with the signal from the hot water outlet temperature setting section 31, and the current to the coil 27 of the temperature controller 20 is adjusted so that the hot water outlet temperature becomes equal to the setting, and the valve body 25 is displaced via the plunger 28. After the water temperature becomes equal to the set temperature and becomes stable, when the signal generator 33 is activated by the user or automatically, a signal is sent from the signal generator 33, and at this time the switch 36 is activated.
If it is in the closed state, it is added to the signal of the hot water temperature setting section 31. Therefore, the hot water outlet temperature setting changes over time, and as described above, the hot water outlet temperature is controlled to be equal to the hot water outlet temperature setting, and the outlet hot water temperature changes over time. Moreover, if the switch 37 is in the closed state,
The signal is transmitted to the motor 16 of the drive device 17 to rotate the water flow control valve 10 forward or reverse. The rotation of the water volume control valve 10 changes the restriction of the valve hole 11, and the differential pressure across the valve hole 11 acts on the diaphragm 7 to drive the control valve 4, thereby changing the water volume. The amount of water changes one after another depending on the signal sent out by the signal generator 33. The combination of this switch 36 and the open/closed states of the switch 36 results in four modes as shown in FIG. In other words, if both switches are open, there is no change, if only switch 36 is closed, there is a change in water temperature, and if only switch 37 is closed, there is a change in water temperature.
If both switches are closed, the water temperature and water amount change simultaneously.
becomes. In this way, the hot water temperature and amount of water change one after another, so when used in a shower, it provides a pleasant stimulation and has a pine surge effect. In addition, since the hot water temperature and water amount can be selectively changed, it can be used depending on the physical condition and mood of the user, and it is possible to obtain a pine surge effect that is more suitable for humans.

Effects of the Invention As described above, the present invention provides a hot water outlet temperature detector that detects the hot water outlet temperature, a temperature controller that is controlled according to a signal from the outlet hot water temperature detector, a water flow controller that controls the amount of hot water supplied, and a water flow rate controller that controls the hot water supply amount. A hot water supply system consisting of a controller drive device, a signal generation section that generates a signal whose magnitude changes continuously over time, and a switch section that selects the transmission of this signal to the temperature controller and the drive device, respectively. Since the hot water supply temperature and hot water supply amount are selectively and continuously changed over time, the hot water supply amount and hot water supply temperature can be changed arbitrarily, and when using the shower, the temperature change and water amount can be adjusted according to your physical condition and mood. change or simultaneous change of temperature and flow rate can be selected.
It has a high pine surge effect, and a variety of change patterns can be obtained by adding a device that automatically and repeatedly switches the switch.

[Brief explanation of drawings]

FIG. 1 is a block diagram of an embodiment of the hot water supply apparatus of the present invention, FIG. 2 is a control block diagram of the same apparatus, and FIG. 3 is a characteristic diagram showing changes over time in water quantity and hot water temperature in the same apparatus. 1... Water flow controller, 17... Drive device, 20...
...Temperature controller, 29...Hot water controller, 33...Signal generation section, 34...Switch section.

Claims (1)

[Claims] 1. A hot water temperature detector that detects hot water temperature, a temperature controller that is controlled according to a signal from the hot water temperature detector, a water flow controller that controls the amount of hot water supplied, a drive device for the water flow controller, and a time controller. A hot water supply controller comprising: a signal generator that generates a signal whose magnitude continuously changes with the passage of time; and a switch that selects the transmission of this signal to the temperature controller and the drive device, respectively. Water heater.