JPH024135A - Device for supplying hot water - Google Patents

Abstract

PURPOSE:To raise the massage effect in a shower during its use by providing a signal generating section for outputting a signal which changes by time to a device to drive a water flow rate controlling device and a setting section which changes as desired the degree of change in signal. CONSTITUTION:When the water is started to pass, the combustion of a heater 21 is started by the water flow and the temperature of the hot water is raised and it is detected by a supply hot water temperature sensor 30, and the temperature is compared with the signal at a supply hot water setting section 31, and the electric current to a temperature controller 20 is regulated so as to bring the temperature to the set temperature so that the hot water temperature becomes stable. After this a tap signal which is selected at a setting section 34 and to which a signal has been sent by a user or automatically is sent to a driving device 17 to rotate positively or reversely a water flow regulating valve 10 in order to change the flow rate. The flow rate changes moment by moment by the discharge signal of a signal generating section 33. When this arrangement is used for a shower in which the temperature of the discharged water and the amount of water thus change successively, a pleasant stimulation develops and the shower has massage effect.

Description

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

BACKGROUND OF THE INVENTION Means for detecting the hot water temperature and adjusting the gas and water quantities are already known in the field of water heaters.

As shown in Fig. 4, it includes a burner A, a fuel control valve B, and a heat exchanger C, and a comparator E that compares the output of a temperature sensor and a temperature setting device to detect the hot water temperature, and a comparator E that compares the output of the temperature setting device. The control valve F and the fuel control valve B of the flow passage are controlled according to the output of the control valve E.

Problems to be Solved by the Invention However, in the above-mentioned configuration, the amount of water and hot water temperature are constant during normal operation, and the amount of water and the hot water temperature are not changed over time. Therefore, if a certain amount of stimulation, such as showering, is preferred, regular stimulation can quickly become habituated, and especially when trying to obtain the pine surge effect by showering, the effect quickly wears off. 0 The present invention aims to enhance the pine surge effect in the shower.

Means for Solving the Problems In order to solve the above problems, the hot water supply device of the present invention includes: a temperature controller that controls the hot water temperature in response to a signal from a hot water temperature detector; a water flow controller that controls the amount of hot water supplied; It consists of a driving device for the water flow controller, a signal generating section that sends a time-varying signal to the driving device, and a setting section that arbitrarily varies the range of change in the signal.

Function: With the above-described configuration, the hot water supply device of the present invention changes the amount of hot water supplied over time according to the signal from the signal generating section, and further changes the range of change in the signal, that is, the amount of hot water supplied, arbitrarily using the setting section.

Example An embodiment of the present invention will be explained with reference to FIG.

1 is a water flow controller, and water enters a valve chamber 3 from an inflow path 2, passes through a gap between a control valve 4 and a control hole 5, and flows into a fire chamber 6.

7 is a diaphragm A (pressure receiving body) that operates together with the control valve, and the other side forms a double chamber 8, and the secondary chamber 8 has a control spring 9 that biases it toward the first fire chamber 6. There is. - The water flowing into the firebox 6 is transferred to the heat exchanger 1 through the valve hole 11 of the water N control valve 10.
2 and is heated, and then supplied to the outlet pipe 13. The downstream side of the water flow control valve 10 is led to the secondary chamber 8 through a communication hole 14 .

The water flow control valve 10 is driven by a drive device 17 consisting of a gear 15 and a motor 16. The position of the valve hole 11 changes as the water volume control valve 10 rotates, 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 A7 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. The temperature controller 20 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 B26, and the diaphragm B26 has a plunger 28 that is displaced by the current of a coil 27. Displaced by.

The pressure-receiving areas of the diaphragm B26 and the valve body 25 are approximately equal, and the fuel pressure is controlled by balancing the force exerted on the valve body 25 by the controlled pressure of the fuel and the electromagnetic force of the plunger 2 and the coil 27. . A hot water supply controller 29 receives a signal from a hot water temperature detector 30 provided in the hot water pipe 13 and outputs the signal to the coil 27 of the temperature controller 20 .

In the block diagram of FIG. 2, the hot water supply controller 29 includes a hot water temperature setting section 31, a temperature control section 32, a signal generation section 33, and a setting section 34. The hot water temperature is controlled by a hot water temperature setting unit 31 consisting of a variable resistor and the like and a hot water temperature detector 3.
0 signals are calculated by the temperature control unit 32, which drives the temperature controller 20 by known PID control, and adjusts the heating amount of the heating device 21 to bring the outlet temperature of the heat exchanger 12 closer to the set temperature. . The signal generator 33 temporally drives the drive device 17 and sends out a signal from the tap a35 and the tap b36 to cause a change in the amount of water. tap a3
Tap b36 sends out a signal with a large water amount change, and tap b36 sends a signal with a small water amount change. The water amount change at this time is controlled by the water amount controller 1 by driving the drive device 17 over time.
The water amount control valve 10 rotates and the water amount changes. Setting section 34
is composed of a changeover switch 37 that selectively switches between tap a35 and tap b36.

Next, the operation will be explained. In the figure, when water flow starts, water that has flowed into the water flow controller 1 flows into the heat exchanger 12, is heated by the heating device 21, and is supplied to the outside from the hot water tap 13. As the water flows, combustion starts in the heating device 21, and the temperature of the hot water rises.
is detected and compared with the signal from the hot water outlet temperature setting unit 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, the tap a35 is automatically turned off by the user or automatically.
A signal is sent from the tap b36, and the signal of the tap selected by the changeover switch 37 of the setting section 34 is transmitted to the drive device 1.
Water is sent to the motor 16 of 7! Rotate or reverse the control valve 10. The rotation of the water MktN regulating valve 10 changes the restriction of the valve hole 11, and the differential pressure of the valve hole 11 acts on the diaphragm 7 to drive the control valve 4, thereby changing the amount of water. The amount of water changes one after another depending on the signal sent out by the signal generator 33. Figure 3 shows the temporal changes in water volume. In this way, the hot water temperature and amount of water change one after another, so when used in the shower, it provides a pleasant stimulation and has a pine surge effect.

Effects of the Invention As described above, the present invention provides a temperature controller that controls the temperature of hot water in response to a signal from a 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 The present invention includes a signal generating section that sends a signal that changes to the driving device, and a setting section that arbitrarily varies the range of change in the signal, so that the temperature of the hot water can be changed over time in any range of change,
When using the shower, it is possible to provide a pine surge effect due to the stimulation caused by changes in the amount of hot water supply.

[Brief explanation of the drawing]

Fig. 1 is a configuration diagram of a hot water supply device showing an embodiment of the present invention, Fig. 2 is a control block diagram of the same device, Fig. 3 is a characteristic diagram showing changes in hot water supply amount of the same device, and Fig. 4 is a conventional one. FIG. 2 is a configuration diagram of a hot water supply device. 1... Water flow controller, 17... Drive device, 20... Temperature controller, 29... Hot water supply controller, 30... Hot water temperature detector, 33...
. . . signal generation section, 34 . . . setting section.

Claims (1)

[Claims] a hot water temperature detector that detects the hot water temperature; a temperature controller that controls the hot water temperature in accordance with 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, a signal generator that sends a time-varying signal to the drive device, and a setting section that arbitrarily varies the range of change of the signal. A hot water supply device consisting of a hot water supply controller and a hot water supply controller.