JPS59170640A - Hot water feeder - Google Patents

Abstract

PURPOSE:To improve the pleasantness of taking shower and to reduce the required quantity of hot water by a method wherein solenoid valve type water quantity controller for controlling the quantity of feed water in a heat exchanger and a signal generator adopted to vary the quantity of feed water periodically at high speed by controlling the opening degree of the solenoid valve are provided. CONSTITUTION:When the supply of water is started, a flow switch operates so that the valve body 16 of a solenoid valve 15 is opened to the maximum degree due to the signal from a signal generator 21 to thereby allow the maximum quantity of water to flow through the water quantity controller 1 and hot water is served through the heat exchanger 12. In this case, a heater 22 is ignited by the signal from the flow switch 23. When the switch 23 is closed manually or automatically, an opening or closing signal is generated from the signal generator 21 to the solenoid valve 15 for a predetermined period of time so that the valve body 16 is opened or closed to change the difference in pressure between a primary chamber 6 and a secondary chamber 8 and a control valve 4 is driven through a diaphragm 7. Consequently, the quantity of the feed water changes with time. Therefore, the massage effect of the shower is improved and the required quantity of hot water is reduced.

Description

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

Conventional configuration and its problems In the field of water heaters, methods for detecting the temperature of hot water and fully adjusting the gas and water volumes are already known.

As shown in Fig. 1, it has a burner A, a fuel control valve B, and a heat exchanger C, and includes a temperature sensor that detects the hot water temperature and a comparator that compares the output of the temperature setting device, and this comparator E. The control valve F and the fuel control valve B'ff of the flow passage are controlled according to the output of the control valve F and the fuel control valve B'ff.

In this conventional example, the amount of water is constant during steady state, and the amount of water is not changed over time. The purpose is to increase the pine surge effect especially when using the shower, and to suppress the average amount of water by changing the amount of water, thereby reducing the amount of hot water used.

Structure of the Invention In order to achieve this object, the present invention provides a water volume side tilting device that fully controls the water flow rate of the heat exchanger and has at least a valve seat and a solenoid valve that opens and closes the valve seat by 31'-''. The water flow is controlled by opening and closing the electromagnetic piece to control the maximum and minimum water flow of the controller. Description of Embodiments A case in which the present invention is applied to an all-gas water heater will be described with reference to FIGS. 2 and 3.

In FIG. 2, reference numeral 1 denotes a water flow control valve, 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 flush chamber 6. γ is a die phragm that operates together with the control valve 4, and the other side completely forms a secondary chamber, and the secondary chamber 8 has an open side l spring 9. 'I am visiting Room 61 Law.

- The water that has flowed into the washing chamber 6 passes through the bypass hole 1o for setting the minimum amount of water and the valve seat 11, is supplied to the heat exchanger 12, is heated, and is supplied to the hot water outlet pipe 13.

The downstream side of the bypass hole 10 and the valve seat 11 is guided to the secondary chamber 8 through a communication hole 14. The electromagnetic valve 16 that opens and closes the valve seat 11 includes a movable part 17 that operates the valve body 16, a solenoid 18 and a yoke 19 that form a magnetic circuit, and a magnetic circuit that connects the valve body 16 to the valve seat.
It is composed of a squeezing suffling 20. Solenoid valve 1
A valve seat 11 is set in the water flow controller 1 so that when the valve body 16 is opened by the signal [, J: of the 4-1 bow generator 21], the water flow controller 1 receives the highest amount of water. By opening and closing the valve body 16, the differential pressure between the washing chambers 6 and 7 and the washing chamber 8 changes, and this differential pressure acts on the diaphragm 7 to drive the control valve 4.

The solenoid valve 15 is equipped with a syringe-type magnetic circuit once a month in Embodiment 1 of the present invention. A solenoid valve having the following may also be used. In addition, the valve body 16 can be opened and closed at a high speed, and is suitable for rhythmic and high-speed changes in the amount of water.

Next, the operation will be explained. In Figure 2, when water starts flowing, the flow switch (not shown) is activated.
is activated, the solenoid valve 16 is activated by the signal from the Shingetsu generator 21, the valve body 16 is opened, and the maximum amount of water flows into the water flow controller 1, and the heat exchanger 125, : -. \Inflow] 7 In response to the signal from the flow switch, which is supplied to the outside from the outlet pipe 13 at a heated temperature of 71, combustion in the heating device 22 is started, and the temperature of the hot water rises by 2. Then, when the switch 23 is closed manually or automatically, the signal generator 21
An opening/closing signal is sent to the solenoid valve 16. The operation of the solenoid valve 15 opens and closes the valve body 16, and the differential pressure between the washing chamber 6 and the secondary chamber 8 changes, and this difference acts on the diaphragm 7 to control the operation. valve 4
The amount of water is changed by driving the The amount of water changes every moment depending on the signal sent by the signal generator 21.

FIG. 3 shows a case where the signal from the 0 signal generator 21 which shows the temporal change in the water amount is sent out at regular intervals, and the water amount changes repeatedly in the range of the maximum water amount and the minimum water amount by opening and closing the solenoid valve 16. Since the amount of water changes from moment to moment, when used in the shower, it provides a pleasant stimulation and has a pine surge effect. The maximum water amount and the minimum water amount are set in an optimal water amount range according to the capacity of the heating device 22 by the bypass hole 10 and the valve seat 11.

FIG. 4 shows the change in water volume when the signal from the signal generator is sent to the solenoid valve during the non-constant [η period and [7].

In this way, the change period can be changed freely by the signal sent out by the signal generator 21.

Since the amount of heat heated by the heat exchanger 12 is the average flow rate of the maximum flow rate and the minimum flow rate, the gas amount adjustment device 624
Set the water temperature to the optimum setting.

Effects of the Invention As mentioned above, the present invention changes the amount of water over time during no-stool defecation, so a pine surge effect can be expected.
Makes for a comfortable shower.

The solenoid valve opens and closes the valve seat of the water flow controller, so
Since it can be opened and closed at high speed using a motor, etc., it is possible to make rhythmic and high-speed changes in water volume.

In addition, since the optimum water temperature can be obtained with an average amount of water, fuel and water consumption can be saved.

[Brief explanation of drawings]

Fig. 1 is a block diagram of a conventional water heater, Fig. 2 is a block diagram of an embodiment of the water heater of the present invention, and Fig. 3 is a. FIG. 4 is a characteristic diagram showing non-periodic water volume changes in the embodiment of the water heater of the present invention. 1...Water flow controller, 11...Valve seat, 1
2... Heat exchanger, 16... Valve body, 15
... Solenoid valve, 21 ... Signal generator, 2
2... Heating device. Representative name: Patent attorney Toshio Nakao and 1 other person
l Figure 2 Figure 3 Figure 4 Allow'I"a'T-

Claims (3)

[Claims] (1) a water flow controller having a heat exchanger, a heating device that heats the heat exchanger, at least a valve seat that controls the flow of water through the heat exchanger, and a solenoid valve that opens and closes the valve seat; A water heater that has a signal generator that sends a signal to a solenoid valve to change the water flow rate of a water flow controller over time. (2) The water heater according to claim 1, wherein the signal generator is configured to send a fixed-cycle signal to the electromagnetic valve. (3) The water heater according to claim 1, wherein the signal generator is configured to send a non-regular periodic signal to the electromagnetic valve.