JPH0534007A - Bath device - Google Patents

Abstract

PURPOSE:To provide a comfortable bath device which prevents high temperature hot water from making contact with a user under bathing during filling a hot bath with high temperature hot water by a method wherein automatic filling with hot water having a proper temperature is carried out up to a set water level, when a water level is reduced, water is automatically supplied, and additional burning of a bath tub hot water is effected by means of an additional burning heater regardless of running out of hot water in a hot water storage tank. CONSTITUTION:A bath device comprises an additional burning circuit 24 comprising an additional burning heater 18 and a pump 16, a flow rate regulating valve 9 to regulate a flow rate of hot water from a hot water storage tank 6, a flow rate regulating valve 8 to regulate a flow rate of water, a hot water filling circuit 25 connected through a filling hot water on-off valve 22, an additional burning circuit 24, a temperature detector 21, and a water level sensor 20. During automatic hot water-supply, through control of either of two flow rate regulating valves 8 and 9, a maximum hot water-supply flow rate is provided. A control device 23 controls such that during filling with high temperature hot water, the flow rate regulating valve 8 on the water side is fully closed to reduce the opening of the flow rate regulating valve 9 on the hot water side, and a flow rate is reduced to a value lower than a flow rate prevailing during automatic hot water-supply.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bath device for automatically supplying hot water to a bath.

[0002]

2. Description of the Related Art For supplying hot water to a bath by a conventional electric water heater, as shown in FIG. 3, a water supply port 2 of a hot water storage tank 1 is connected to a water supply source through a pressure reducing valve 3, and a heater is provided in the hot water storage tank 1. 4 is provided, is guided to the mixing tap 7 from the tap 5 to the bath 6, and the water side of the mixing tap 7 is connected to a water supply source.

In the electric water heater, the water in the hot water storage tank 1 is boiled up by the heater 4 which uses electric power at midnight.
When the bathtub 6 is filled with hot water, the mixing stopper 7 is adjusted to supply hot water of an appropriate temperature. When the bath water is used and then recovered to a proper temperature from a state where the bath temperature is lowered, the mixing tap 7 is set to a high temperature and the hot water in the hot water storage tank 1 is poured into the bath 6 to raise the bath temperature.

[0004]

In the structure of such a conventional bath device, it is inconvenient because it is necessary to manually fill the bathtub 6 with water or adjust the temperature, and the hot water in the hot water storage tank 1 is exhausted. In this case, since it is not possible to reheat the hot water in the bathtub, there is a problem in that a bath kettle of gas or the like dedicated to reheating must be separately installed, which requires additional equipment, installation space, and installation work. In addition, there is a problem in that the hot water in the bathtub is insufficient and the hot water makes a person in the bath uncomfortable when making hot water.

The present invention is to solve the above-mentioned problems. It is highly convenient for automating the filling of water and adjusting the temperature, eliminating the fear of running out of hot water, and the person who is bathing in high-temperature hot water at the time of hot water The purpose of the present invention is to provide a comfortable bath device that does not hit the skin.

[0006]

In order to achieve the above object, the present invention has a reheating circuit consisting of a reheating heater for heating bath water and a pump, a flow rate adjusting valve for adjusting the hot water flow rate of a hot water tank, and a water flow rate. And a flow rate adjusting valve for adjusting
A pouring circuit connected to the reheating circuit from the two flow rate adjusting valves via the pouring on / off valve, and a temperature detector and a water level sensor are arranged in the reheating circuit, and at the time of automatic hot water supply, the two flow rate adjusting valves Only one of them is controlled to obtain the maximum hot water supply flow rate.When hot water is used, the water flow rate adjustment valve should be fully closed and the hot water flow rate adjustment valve should be fully opened to reduce the temperature. A control device is provided so that the flow rate during hot water supply is lower than the flow rate during automatic hot water supply.

[0007]

According to the present invention, with the above construction, the hot water from the hot water tank is adjusted to an appropriate temperature by the two flow rate adjusting valves, the pouring on / off valve is opened, and the hot water is poured into the bathtub through the reheating circuit, and the bath level is detected by the water level sensor. The water filling is automatically stopped at the set water level. Further, the pump is operated to circulate the bath water, and the bath heater is used to reheat the bath water. The bath temperature is detected by the temperature detector in the reheating circuit, and reheating is automatically stopped at the set temperature. When hot water is added, the flow rate control valve is used to set the temperature to a high temperature, and it is poured into the bathtub through the pouring on-off valve and the reheating circuit.
Raise the temperature of the bath water.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIG.

FIG. 1 is a block diagram of a bath apparatus according to an embodiment of the present invention. The pipe from the water supply source is connected to the water supply port 2 and the water-side flow rate adjustment valve 8 via the pressure reducing valve 3, and from the hot water supply port 5,
The hot water flow control valve 9 and a pipe to the hot water supply pipe 10 are connected.
The return pipe 12 and the outgoing pipe 13 from the connection adapter 11 of the bathtub 6 are connected to the pipe connection portion 14 and the pipe connection portion 15, respectively.

In the reheating circuit 24, a pump 16, a two-way valve 17, a reheating heater 18 and a pipe connecting portion 15 are sequentially connected from a pipe connecting portion 14, and a temperature detector 19, a water level sensor 20 and a flow switch 21 are provided on the way. It is provided and configured. The pouring circuit 25 is configured to be connected to the reheating circuit 24 downstream of the pump 16 via the pouring opening / closing valve 22 and the check valve 23 from the pouring side flow rate adjusting valve 8 and the pouring side flow rate adjusting valve 9. In addition, a vacuum break valve 26 is provided in the pouring circuit 25.
Is provided to cut off the water supply source and the bathtub 6.

At the time of automatic pouring, the two-way valve 1 is controlled by the control device 23.
7 is closed and the pump 16 is stopped.
open. The mixed hot water adjusted to an appropriate temperature by the water side flow rate adjusting valve 8 and the hot water side flow rate adjusting valve 9 is poured into the bathtub 6 from the connection adapter 11 via the outflow pipe 13 of the reheating circuit. Since the return pipe 12 to which the water level sensor 20 is connected is closed at one end by the two-way valve 17, the water pressure of the bath water from the connection adapter 11 is transmitted and the pressure is detected by the water level sensor 20.

Until the water surface of the bathtub 6 reaches the connecting adapter 11, the pressure of the water level sensor 20 does not change because the return port is open to the atmosphere. The water surface is the connection adapter 11
When it reaches, the return port is filled with hot water, and then the connection adapter 1
The change in water level from 1 is detected by the water level sensor 20.
After detecting the change of the water level, the two-way valve 17 is opened and the hot water is also flown to the return pipe 12. After a certain period of time, the pouring on-off valve 22 is closed, the pump 16 is operated, the bath water is circulated in the reheating circuit, and the air remaining in the reheating circuit is discharged. After that, the signal of the water level sensor 20 when the two-way valve 17 is closed and the pump 16 is stopped is used as a reference signal, and the pouring / opening valve 22 is opened again to restart pouring. After that, when the signal from the reference signal reaches the set water level, the pouring / opening valve 22 is closed and pouring into the bathtub 6 is automatically stopped.

At the time of this automatic pouring, as shown in FIG. 2, on the side where the hot water temperature in the hot water temperature control range is low, the water side flow rate adjusting valve 8 is fully opened (e to f) and the hot water side flow rate adjusting valve 9 is hot water. The opening is opened as the temperature rises (a to b), and the hot water temperature is adjusted.
On the side where the hot water temperature in the hot water temperature control range is high, the hot water flow rate adjusting valve 9 is fully opened (b to c), and the hot water flow rate adjusting valve 8 closes its opening as the hot water temperature increases (f ~ G) Adjust the hot water temperature. In this way, in the hot water temperature adjustment range, either one of the water side flow rate adjusting valve 8 or the hot water side flow rate adjusting valve 9 is fully opened, and the pouring flow rate can be maximized by adjusting the opening degree of only one of them. To

Further, when the hot water from the connection adapter 11 spouts at the maximum pouring flow rate at the time of high-temperature hot water, the hot water may hit the person in the bath and feel uncomfortable. The control device 23 is the water side flow rate adjusting valve 8
Is fully closed (h), and the hot water flow rate adjusting valve 9 is set to an opening that is narrower than the full opening so that the hot water does not hit a person taking a bath.

After that, when the hot water in the bathtub 6 is used and the water level is lowered, the control device 23 opens the pouring / opening valve 22 again to open the bathtub 6
The water is poured into and the water level is automatically replenished to the point where the bath water level reaches the set water level.

When the hot water temperature in the bathtub 6 is lowered, the control device 2
3 opens the two-way valve 17, operates the pump 16, and energizes the reheating heater 18 to circulate and heat the bath water.
The temperature of the bath water from the return pipe 12 is detected by the temperature detector 19, and when the set temperature is reached, the energization of the reheating heater 18 is stopped, the operation of the pump 16 is stopped, and the reheating operation is automatically stopped. The reheating is started manually or by operating the pump 16 at regular intervals to detect the temperature detector 19.
Can be performed when the temperature of the bathtub hot water is detected and becomes equal to or lower than the set temperature.

According to the configuration of this embodiment, the bathtub 6 can be automatically filled with water at an appropriate temperature and amount, and automatic water replenishment is also possible. The reheating heater 18 can automatically reheat the hot water in the bathtub without using the hot water in the hot water storage tank 1, and there is no concern that the hot water in the hot water storage tank 1 will run out. Further, when the hot water in the hot water storage tank 1 is sufficient, hot hot water can be provided, and comfortable hot hot water can be provided so that the hot water does not hit a person taking a bath.

[0018]

As described above, the bath apparatus of the present invention has a reheating circuit including a control device, a reheating heater for heating bath water, and a pump, and a flow rate adjusting valve for adjusting the amount of hot water discharged from the hot water storage tank. And a flow rate adjusting valve for adjusting the flow rate of water, a pouring circuit connected from the two flow rate regulating valves to the reheating circuit via a pouring on-off valve, and a temperature detector and a water level sensor in the reheating circuit. At the time of automatic hot water supply, only one of the two flow rate adjusting valves is controlled to obtain the maximum hot water supply flow rate. When hot hot water is used, fully close the water flow rate adjustment valve and lower the opening of the hot water flow rate adjustment valve so that the hot water flow rate is lower than the automatic hot water flow rate. As a result, it is possible to automatically supply hot water of a suitable temperature to the set water level, and to automatically replenish water when the water level drops. Further, the reheating heater can reheat the hot water of the bath irrespective of running out of the hot water in the hot water storage tank, and at the time of the high temperature hot water, a comfortable high temperature hot water can be provided so that the hot water does not hit a person taking a bath.

[Brief description of drawings]

FIG. 1 is a configuration diagram of a bath device according to an embodiment of the present invention.

FIG. 2 is an operation diagram of a flow rate adjusting valve in the same embodiment.

[Figure 3] Configuration diagram using a conventional electric water heater

[Explanation of symbols]

 1 Hot water storage tank 6 Bathtub 8 Water side flow rate adjustment valve 9 Hot water side flow rate adjustment valve 12 Return pipe 13 Outflow pipe 16 Pump 17 Two-way valve 18 Reheating heater 19 Temperature sensor 20 Water level sensor 21 Flow switch 22 Pouring hot water open / close valve 23 Control Device 24 Reheating circuit 25 Pouring circuit

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Kenshi Akagawa 1006 Kadoma, Kadoma City, Osaka Prefecture Matsushita Electric Industrial Co., Ltd.

Claims (1)

Claims: 1. A reheating circuit comprising a reheating heater for heating bath water and a pump, a flow rate adjusting valve for adjusting a hot water flow rate from a hot water tank, and a flow rate adjusting valve for adjusting a water flow rate. ,
A pouring circuit connected from the two flow rate adjusting valves to the reheating circuit via a pouring opening / closing valve, and a temperature detector and a water level sensor are arranged in the reheating circuit, and the two flow rates are set during automatic hot water supply. Only one of the adjusting valves is controlled to obtain the maximum hot water supply flow rate, and when the hot water is hot, the water side flow rate adjusting valve is fully closed and the hot water side flow rate adjusting valve is fully opened. , A bath device comprising a control device that controls the flow rate during high-temperature hot water to be lower than the flow rate during automatic hot water supply.