JPS59153060A - Hot water feeder - Google Patents

Abstract

PURPOSE:To increase the massage effect of a shower from the hot water feeder by a method wherein the two chambers divided by a pressure receiving body and a differential pressure generating body are made to communicate with each other through a communication passage, an adjust valve is provided at one end of the communication passage and a water quantity controller is provided at the other end of the passage so that the quantity of water in the hot water feeder is changed with time. CONSTITUTION:When a supply of water is started, the water entered the water quantity controller 1 flows round to a heat exchanger 14, is heated by a heater 26 and supplied outside from a hot water supply pipe 15. Further, when a signal is generated from a signal generator 28, a motor 20 of a drive device 21 rotates through a hot water supply controller 27 to rotate the adjust valve 17 whereupon the throttle of a valve hole 17a is changed and the resultant pressure difference acts on a diaphragm so that a control valve 4 is driven and the quantity of water is changed. As the signal transmitted from the signal generator 28 changes in succession by a water quantity variable memory 28a and the quantity of water changes with time, the massage effect of the shower from the hot water feeder is improved.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application Page 2 The present invention relates to a water heater having a water flow control function.

Conventional configuration and problems There are already known methods for detecting the hot water temperature in a water heater and adjusting the amount of water. 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 E that compares the output of the temperature setting device. The control valve F of the water passage is controlled according to the output of the flow channel. However, conventional water flow control is performed to guarantee the hot water temperature, and only a constant amount of water is supplied during normal stable use.

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, thereby increasing comfort.

Structure of the Invention In order to achieve this object, the present invention forms two pressure chambers consisting of a primary chamber and a secondary chamber with a pressure receiving body such as a diaphragm, and a control valve 3-peg that operates together with the pressure receiving body. - providing communication between the firebox and the differential pressure generating body; - a first communicating passage communicating the firebox and the secondary chamber; and a second communicating passage communicating the secondary chamber and the low pressure part of the differential pressure generating body. and a water flow controller having a control valve with a drive device in either the first communication passage or the second communication passage and a throttle in the other, and a heat exchanger having the water flow controller and a heating device. A signal generator that generates a signal that changes over time drives the drive device via the hot water controller to change the opening degree of the control valve, and the amount of water changes over time based on the signal from the signal generator. It is something.

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

In FIG. 2, reference numeral 1 denotes a water flow controller, and water enters a valve chamber 3 from an inflow device 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 (
(pressure receiving body), the other side forms a secondary chamber 8;
There is a control spring 9 in which biases the first fire chamber 6 side. - Water flowing into the firebox 6 passes through a differential pressure generator 13 formed by a differential pressure hole 10, a differential pressure valve 11, and a differential pressure spring 12, and is supplied to the outside through a heat exchanger 14 and a hot water outlet pipe 16.

- A control valve 17 having a valve hole 17a is provided in the first communication passage 16 that communicates the firebox 6 and the secondary chamber 8, and a second communication passage that communicates the secondary chamber 8 and the differential pressure generating section 13. 18 has aperture 18
A is not provided.

The aforementioned control valve 1 is rotated by a drive device 21 consisting of a gear box 19 and a motor 20, and its opening degree is changed. The pressure in the secondary chamber 8 can be changed by rotating the sizing control valve 17, depending on the partial pressure between the valve hole 17a of the control valve 17 and the throttle 18a, and the pressure in the secondary chamber 8 can be adjusted. Reference numeral 22 denotes an incoming water temperature detector, and the water that has passed through the water flow rate controller 1 having the above configuration is heated by the heat exchanger 14, and the hot water temperature is detected by the outlet hot water temperature detector 23 of the outlet pipe 16. Gas, which is a fuel, passes through a heating controller 25 from a gas supply path 24 and is combusted in a heating device 26 . 27
is the hot water controller, which has an inlet water temperature detector 22 and an outlet water temperature detector 2.
Upon receiving the signal No. 3, the heating controller 25 and the drive device 21 are controlled. Reference numeral 28 denotes a signal generation path for sending a time-varying signal to the hot water supply controller 276 vane, which has a water quantity variable storage section 28a inside.
The signal No. 8 is transmitted to the drive device 21 via the hot water controller 27 to control the amount of water.

Next, the operation will be explained. When the water flow starts in FIG. 2, the water that has flowed into the water flow rate controller 1 flows into the heat exchanger 14, is heated by the heating device 26, and is supplied to the outside from the hot water tap 15. As the water flows, combustion in the heating device 26 starts, the temperature of the hot water rises, and after a certain period of time, the temperature of the hot water becomes stable.

Thereafter, when the signal generator 28 is activated by the user or automatically, a signal is sent out from the water volume variable storage section 28a, and this signal is amplified and sent to the motor 20 of the drive device 21 via the hot water controller 27. is transmitted to the control valve 17.
rotate forward or reverse. The rotation of the control valve 17 changes the restriction of the valve hole 17a, and the differential pressure of the valve hole 17a acts on the diaphragm to drive the control valve 4, thereby changing the amount of water. The signal sent by the signal generator 28 is the water amount variable 6
It changes one after another depending on the page storage section 28a. Figure 3 shows the temporal changes in water volume. Since the amount of water changes in this way, 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 28 so that the amount of water changes within a predetermined amount of water depending on the heating capacity of the heating device 26. Signal generator 28
When the operation stops, the water flow rate stops changing and normal hot water supply with a constant amount of water returns.

The hot water supply controller 27 not only detects the signal from the hot water temperature detector 23 and controls the heating controller 26 to keep the hot water temperature constant, but also activates the drive device 21 when the water flow exceeds the heating capacity of the heating device 26. It has the function of automatically regulating the amount of water by driving.

Further, in this embodiment, the first communicating passage 16 is provided with a regulating valve 1, and the second communicating passage 18 is provided with an orifice 18a (5). The same effect can be achieved even if .

Effects of the Invention Since the drive device that varies the set water volume of the water volume controller is driven by the signal from the signal generator, the water volume is varied.
The amount of hot water that is supplied changes over time, giving a massage effect when using the shower, resulting in a comfortable shower.Since the small control valve can be controlled quickly, the drive device can be configured with a small size and small capacity. It has the effect of being possible, and has high practical value.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing a conventional water heater, FIG. 2 is a block diagram of a water heater according to an embodiment of the present invention, and FIG. 3 is a characteristic diagram showing changes in the amount of water in the same device. 4...Control valve, 6...-Firebox, 7...
・Pressure receiving body (diaphragm), 8...Secondary chamber, 13
... Differential pressure generator, 14 ... Heat exchanger,
16... First communication passage, 17... Control valve, 18... Second communication passage, 18a... Throttle, 21... Drive Device, 27...Hot water controller, 28...Signal generator, 28a...Water amount variable storage unit. Name of agent: Patent attorney Toshio Nakao and 1 other person No. 1
@ Bha Figure 2 Figure 3 Clear weather

Claims (2)

[Claims] (1) A pressure receiving body, a primary chamber and a secondary chamber partitioned by the pressure receiving body, a control valve cooperating with the pressure receiving body, and the -
a differential pressure generator and a heat exchanger connected to the next chamber; a heating device for the heat exchanger; a first continuous passage communicating the next chamber and the secondary chamber; and the differential pressure between the secondary chamber and the second chamber. a second communication passage that communicates with the generator; a control valve provided in one of the first communication passage or the second communication passage; a throttle provided in the other; a drive device for the control valve; and a signal. A hot water supply device comprising a generator and a hot water supply controller, the drive device being controlled by a signal from the signal generator to change the amount of water over time. (2) The water heater according to claim 1, wherein the signal generator includes a variable water amount storage section.