JPS6086347A - Hot-water supplying device - Google Patents

Abstract

PURPOSE:To supply required amount of hot-water having required temperature automatically by a method wherein the control signals of a burner and a solenoid valve are produced based on the signals of flow amount and temperature from sensors in a pipeline as well as a set signal from a setting unit. CONSTITUTION:The temperature of hot-water is detected by a temperature sensor 6 and the detected value is sent into a control circuit 10. When the hot-water temperature is higher than the set value of the setting unit 8, the burner 1 is controlled so as to reduce the heating power, however, when the hot-water temperature is lower than the set value, the burner is controlled so as to increase the heating power thereof and, thus, the hot-water temperature is kept at the set value. Water supplying amount is integrated in the control circuit 10 simultaneously with the beginning of supplying water by receiving a flow amount signal from a flow amount sensor 7 and when the integrated value has arrived at the set value, a control signal is outputted, the solenoid valve 4 is closed and the combustion of the burner 1 is stopped. Then, an indicating signal or an alarming signal is outputted and it is informed by the sounding of a buzzer 9 or the lighting of an indicating lamp that the hot-water of required temperature and amount is reserved in a bathtub 3.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a supply device for supplying tide in a required amount and at a required temperature to a bathtub or the like.

When water passing through a heat exchanger is heated by combustion gas from a burner and supplied to a bathtub, etc., the water temperature is automatically controlled, but the amount of S is generally adjusted manually; There is a risk that you will be distracted by work and overflow.

An object of the present invention is to provide a water heater that can automatically supply water at a required temperature and in a required amount.

This invention relates to a water heater that heats water passing through a heat exchanger using combustion gas from a burner and supplies it to a bathtub or the like, which includes a solenoid valve disposed in a hot water supply path and a flow rate sensor disposed in the water supply channel or hot water supply path. , a temperature sensor that detects water supply or hot water supply temperature; a setting unit that sets the hot water temperature and amount; a control signal for the burner based on the flow rate and temperature signals from each sensor, the setting signal from the setting unit, etc.; It is characterized by comprising a control circuit that generates a control signal and a display alarm signal for the solenoid valve, and a notification section that receives the display and alarm signals from the control circuit and notifies that the amount of hot water supply has reached a set amount. It is something to do.

Hereinafter, this invention will be explained in detail based on examples.

FIG. 1 shows an embodiment of the present invention, in which 1 is a burner, 2 is a heat exchanger, 3 is a bathtub, and 4 is an electromagnetic device installed in a hot water supply path from the outlet of the heat exchanger 2 to the bathtub 3. Valve, 5 is faucet,
6 is a temperature sensor that detects the hot water temperature on the outlet side of the heat exchanger 2; 7 is a flow rate sensor disposed in the water supply channel (or hot water supply path); 8 is a setting unit that sets the hot water temperature and amount; 9 is a hot water supply A notification unit (for example, a buzzer or an indicator light) that notifies that the amount has reached a set amount, and 10 is a control circuit. This control circuit 1
0 is calculated by calculating the required heating heat amount, water supply amount integrated value, etc. in response to the temperature signal, flow rate signal, hot water temperature setting value, hot water amount setting value, etc. from the setting unit 8 from each sensor 6.7, It is for creating control signals for the burner 1, control signals for the solenoid valve 4, and display/alarm signals, and uses a microcomputer or the like.

Next, the operation will be described. First, the setting unit 8 sets the required hot water temperature and amount. After this, when you start water supply,
The burner 1 is ignited and its combustion gas heats the water passing through the heat exchanger 2. The temperature of this hot water is detected by a temperature sensor 6 and sent to a control circuit 10. If the ts temperature is higher than the set value, the burner 1 is controlled to decrease its thermal power, and conversely, if it is lower than the set value, the burner 1 is controlled to increase it. As a result, the water temperature is maintained at the set value.

On the other hand, the amount of water supplied is accumulated at the same time as the water supply starts.

That is, in response to the flow rate signal from the flow rate sensor 7, the control circuit 10 integrates the amount of water supplied. When this integrated value reaches a set value, a control signal is sent to the solenoid valve 4, and the solenoid valve 4 is closed. At the same time, a fire extinguishing command is issued to burner 1, and burner 1 stops burning.

In addition, a display/alarm signal will appear and the buzzer 9 will sound (or the indicator light will light up) to indicate the required water temperature and amount in the bathtub 3.
You will be notified that the data has been saved.

In the above embodiment, the temperature sensor 6 was set on the outlet side of the heat exchanger 2, but it can also be placed on the inlet side to detect the temperature of the supplied water, and calculate the required amount of heating heat from the difference from the set temperature, flow rate, etc. The thermal power of the burner 1 may be controlled depending on the temperature. Further, the solenoid valve 3-4 may be disposed on the inlet side of the heat exchanger 2, and may be operated in combination with a timer to supply hot water at a desired time.

As described above, according to the present invention, the amount of hot water is added as a setting item, and a flow rate sensor is provided, and its signal is used to integrate the amount of water supply (hot water) and control the WA hanging automatically. It is possible to supply hot water at the required temperature and in the required amount. Furthermore, since there is no need to embed or attach a water level sensor in the bathtub, its construction is easy.

[Brief explanation of drawings]

FIG. 1 is a configuration diagram showing an embodiment of a water heater according to the present invention. 1... Burner, 2... Heat exchanger, 3... Bathtub,
4... Solenoid valve, 5... Faucet, 6... Temperature sensor, 7... Flow rate sensor, 8... Setting section, 9... Notification section, 10
...Control circuit. 4-

Claims (1)

[Claims] In a water heater that heats water passing through a heat exchanger with combustion gas from a burner and supplies it to a bathtub or the like, a solenoid valve disposed in a hot water supply path, a flow rate sensor disposed in the water supply conduit or hot water supply path, and the heat exchanger A temperature sensor that detects the water supply or hot water temperature at the inlet or outlet side of the vessel, a setting section that sets the hot water temperature and amount, and a flow rate from each sensor, a temperature signal, a setting value of the setting section, etc. A control circuit that generates a control signal for the burner, a control signal for the solenoid valve, and a display/alarm signal, and a notification section that receives the display/alarm signal from the control circuit and notifies that the amount of hot water supply has reached a set value. Hot water supply equipment.