JPH0379619B2 - - 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.

Conventional Structure and Problems There are already known methods in the field of water heaters for detecting the temperature of hot water and adjusting the amount of gas and water.

As shown in Fig. 1, it has a burner A, a fuel control valve B, and a heat exchanger C, and has a temperature detector D that detects the hot water temperature and a comparator E that compares the output of the temperature setting device.
According to the output of the comparator E, the water passage control valve F and the fuel control valve B are controlled.

In this conventional example, the amount of water and hot water temperature are constant during normal operation, and the amount of water and hot water temperature are not changed over time. Therefore, in cases where a certain amount of stimulation, such as a shower, is preferred, habituation occurs quickly to regular stimulation.
Particularly when trying to obtain the pine surge effect by showering, the effect wears off quickly.

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.

Structure of the Invention In order to achieve this object, the present invention includes a hot water temperature detector for detecting the hot water temperature, a temperature controller for controlling the hot water temperature in accordance with a signal from the hot water temperature detector, and a water flow rate for controlling the hot water supply amount. a controller, a drive device for the water flow rate controller, a signal generator that sends a signal whose magnitude changes continuously with the passage of time to the temperature controller and the drive device, and a signal generator that sends a signal whose magnitude changes continuously over time to the temperature controller and the drive device; A hot water supply controller comprising a setting section that sets independently of the temperature controller and the drive device,
The hot water temperature and the amount of hot water supplied are changed continuously over time.

Description of examples 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 and flows into a primary chamber 6 through a gap between a control valve 4 and a control hole 5. 7 is a diaphragm A (pressure receiving body) that operates in conjunction with the control valve, and the other side forms a double chamber 8, and a control spring 9 is attached to the secondary chamber 8, biasing it toward the primary chamber 6. . The water that has flowed into the primary chamber 6 is supplied to a heat exchanger 12 through a valve hole 11 of a water flow control valve 10, heated, and then supplied to a hot water 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 with the rotation of the water flow control valve 10, and the relationship between the differential pressure and the amount of water passing through the valve hole 11 changes, and the differential pressure is applied to the diaphragm A7.
and drives 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 hole 25 is displaced integrally with the diaphragm B26, and the diaphragm B2
6 is displaced by a plunger 28 which is displaced by the current in a coil 27. Diaphragm B
26 and the valve body 25 are approximately equal in pressure receiving area, and the fuel pressure is controlled by balancing the force exerted by the controlled pressure of the fuel on the valve body 25 and the electromagnetic force of the plunger 28 and the coil 27. . 29 is a hot water supply controller, which is a hot water temperature detector 3 installed in the hot water tap 13;
0 signal is input, the coil 27 of the temperature controller 20
Output to.

In the block diagram of FIG.
is composed of a hot water temperature setting section 31, a temperature control section 32, a signal generation section A33, a signal generation section B34, and a setting section 35. To control the hot water temperature, a temperature control unit 32 calculates signals from a hot water temperature setting unit 31 and a hot water temperature detector 30, which are composed of variable resistors, etc., and drives the temperature controller 20 by known PID control. By adjusting the heating amount of the heating device 21, the hot water temperature of the heat exchanger 12 is brought closer to the set temperature. The signal generating unit A33 taps a37 and b38 the signal from the hot water temperature setting unit 31 whose magnitude continuously changes with the passage of time.
Send from. Tap a37 sends out a signal with a large variation in the temperature of the hot water coming out, and tap b38 sends a signal with a small variation in the temperature of the hot water coming out. Further, the signal generating section B34 continuously sends out a signal from the tap c39 and the tap d40 to continuously drive the drive device 17 and cause a change in the amount of water. Tap C39 sends a signal with a large water amount change, and tap d40 sends a signal with a small water amount change. At this time, the amount of water changes by driving the drive device 17 over time to rotate the water amount control valve 10 of the water amount controller 1 and change the amount of water. The setting section 35 includes a changeover switch A41 that selectively switches between tap a37 and tap b38, and tap c39.
and a changeover switch B42 for selectively switching the tap d40.

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 13. 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 generating section A33 and the signal generating section B34 are activated by the user or automatically, the signal generating section A33 activates the tap a37.
A signal is sent from the tap b38, and the signal of the tap selected by the changeover switch A41 of the setting section 35 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 as shown in FIG. 4a. On the other hand, the signal generating section B34 sends out signals from the taps C39 and 40, and the signal from the tap selected by the changeover switch B42 of the setting section 35 is sent to the motor 16 of the drive device 17, causing the water flow control valve 10 to rotate normally or Reverse it.
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 B34. Figure 4b shows the temporal change in water amount. 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, the hot water temperature and water volume can be adjusted independently, and the magnitude of each change can be selected. You can get a pine surge sensation that suits your personal preference and physical condition.

Effects of the Invention As described above, the present invention includes 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, and a water flow controller that controls the amount of hot water supplied. a driving device for the water flow controller; a signal generating unit that generates a signal that continuously changes its magnitude over time and sends it to the temperature controller and the driving device; The hot water supply controller is comprised of the temperature controller and the hot water controller provided with a setting section that is set independently of the drive device.
The temperature of hot water and the amount of hot water supplied can be continuously changed over time in any range of variation, and a pleasant stimulating pine surge effect can be given by various temperature changes and flow rate changes when using the shower.

In addition, since the hot water temperature and the amount of hot water supplied are continuously changed separately, it is possible to sustain unfamiliar stimulation that you will never get tired of by using a variety of combinations of temperature and flow rate.

[Brief explanation of drawings]

Fig. 1 is a block diagram of a conventional water heater, Fig. 2 is a block diagram showing an embodiment of the water heater of the present invention, Fig. 3 is a control block diagram of the same, and Fig. 4 is a water flow diagram of the same. FIG. 3 is a characteristic diagram showing changes in temperature and tap water temperature. 1...Water flow controller, 12...Heat exchanger, 17...
... Drive device, 20 ... Temperature controller, 21 ... Heating device, 29 ... Hot water supply controller, 33 ... Signal generation section A, 34 ... Signal generation section B, 35 ... Setting section, 3
0... Hot water temperature detector.

Claims (1)

[Scope of Claims] 1. 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, and the water flow rate. a driving device for the controller; a signal generating unit that generates a signal that continuously changes its magnitude over time and sends it to the temperature controller and the driving device; A hot water supply device consisting of a hot water supply controller and a hot water supply controller equipped with a setting section that is configured independently. 2. The hot water supply controller includes a signal generating section A that generates a signal that changes the hot water temperature over time, a signal generating section B that generates a signal that changes the amount of water over time, and a signal generating section A and a signal generating section B that generates a signal that changes the amount of water over time. The water heater according to claim 1, comprising a setting section that independently selects the signal from the generating section B for the temperature controller and the drive device.